Effects of sex, sexual orientation, infidelity expectations, and love on distress related to emotional and sexual infidelity

The scale of myths of romantic love: Evidence of validity and reliability of a brief scale in Peru

The study aimed to provide validity evidence and reliability of the Scale of Myths of Romantic Love (SMRL) in Peru among young and adult individuals. Focusing on how romantic love myths affect relationship satisfaction and their ties to interpersonal violence, sexism, and gender inequality, the methodology involved 308 participants, mainly females (75%), using the SMRL and Relationship Assessment Scale. Bayesian Confirmatory Factor Analysis (BCFA) assessed the scale's structure and reliability, complemented by descriptive statistics and correlation analyses to examine the myths' impact on intimate relationships. Results showed the SMRL's two-dimensional structure, confirming its robust psychometric properties and satisfactory internal consistency. Descriptive findings revealed a skeptical view of traditional romantic myths among participants, indicating the scale's good reliability and successful adaptation to the Peruvian context. This validation highlights how debunking romantic love myths can improve relationship dynamics and satisfaction and addresses their wider societal effects.

Multidimensional Measurement of Attitudes Toward Consensual Non-Monogamy

Despite increased interest in consensual non-monogamy (CNM), significant stigma remains against CNM. Consequently, there is a need for scales to assess attitudes toward CNM. In response to this need we developed the Multidimensional Attitudes toward CNM Scale (MACS). Items were developed in consultation with content experts and data were collected from two samples at two different Canadian Universities. Fit indices of exploratory (Sample A) and confirmatory (Sample B) factor analysis suggested a 16-item scale with three underlying factors: CNM is Dysfunctional, CNM is Immoral, and CNM is Healthy and Satisfying. Validity analyses, conducted using the combined sample (n = 806; 79% women; 67% heterosexual), demonstrated that participants with higher MACS total scores (i.e. more negative attitudes) were less likely to have ever been involved in a CNM relationship and were more likely to report monogamy as their ideal relationship style. Higher MACS scores were also associated with more negative attitudes toward bisexuality and toward women, and higher scores on measures of homophobia and jealousy. In contrast, individuals with higher scores on the CNM is Healthy subscale tended to score higher on measures of empathy. The MACS demonstrates strong psychometric properties and can assist in better understanding attitudes toward CNM relationships in research and clinical settings.

What is Infidelity? A Vignette Study on Norms and Attitudes toward Infidelity

Infidelity is more than extradyadic intercourse, but it is unclear where infidelity begins and how behaviors are related to each other. We investigated data from a factorial survey experiment implemented in the German Family Panel (pairfam). 9,104 respondents evaluated 26,633 vignettes on unfaithful behaviors including four dimensions: explicit behavior, emotional involvement, infidelity duration, and erotic online contact. Results suggest that item lists may not reveal the full picture of unfaithfulness. While intercourse is judged as unfaithful irrespective of the context, less explicit behaviors such as kisses or hugs were also regarded as infidelity. Nonphysical dimensions contributed to infidelity judgments more strongly when less explicit behaviors were evaluated. Even cases of no physical contact combined with erotic text messages and emotional involvement were evaluated as unfaithful. Women's judgments were stricter than men's, and younger respondents' evaluations were stricter than those from older respondents. No differences were found regarding the gender of the vignette character.

Love and Infidelity: Causes and Consequences

This is a narrative review addressing the topic of romantic infidelity, its causes and its consequences. Love is commonly a source of much pleasure and fulfillment. However, as this review points out, it can also cause stress, heartache and may even be traumatic in some circumstances. Infidelity, which is relatively common in Western culture, can damage a loving, romantic relationship to the point of its demise. However, by highlighting this phenomenon, its causes and its consequences, we hope to provide useful insight for both researchers and clinicians who may be assisting couples facing these issues. We begin by defining infidelity and illustrating the various ways in which one may become unfaithful to their partner. We explore the personal and relational factors that enhance an individual's tendency to betray their partner, the various reactions related to a discovered affair and the challenges related to the nosological categorization of infidelity-based trauma, and conclude by reviewing the effects of COVID-19 on unfaithful behavior, as well as clinical implications related to infidelity-based treatment. Ultimately, we hope to provide a road map, for academicians and clinicians alike, of what some couples may experience in their relationships and how can they be helped.

Sexual Orientation and Infidelity-Related Behaviors on Social Media Sites

Little research has been focused on offline or online infidelity in GL dating relationships, especially in a post-communist socio-cultural context. Infidelity-related (IR) behaviors on social media sites might be as hurtful to relationships as offline infidelity, both in gay, lesbian (GL) and heterosexual romantic monogamous relationships. In this cross-sectional study, we aimed to examine the associations between dyadic satisfaction, attitudes toward infidelity, and problematic internet usage, with IR behaviors on social media sites among GL and heterosexual unmarried individuals in Romanian sexual minority communities. Results showed that GL respondents did not significantly differ from heterosexual participants regarding IR behaviors. Furthermore, we found the main effect of attitudes toward infidelity and problematic internet use on IR behaviors. Sexual orientation highlights the main effect of IR behaviors when analyzed with dyadic satisfaction. The current study may be a precursor to further research investigating correlations in online IR behavior among lesbian and gay individuals engaging in consensual nonmonogamy. Implications of the findings are discussed in the social context of a post-communist country where GL individuals may face discrimination and stigma because of their sexual orientation.

The Measurement of Love: Psychometric Properties and Preliminary Findings of the Short Love Scale (SLS-12) in a Polish Sample

There has been a perceived need for the development of instruments to assess relationship quality and love. The aim of this study was to describe the psychometric properties of the Short Love Scale (SLS-12) and to compare different measurement models. Data were collected using the CAWI (Computer-Assisted Web Interview) in Poland in early 2022 (18-60 years old; n = 941) among individuals living in formal or informal monogamous relationships. Both exploratory (EFA) and confirmatory factor (CFA) analyses were performed on two different subsamples obtained through random splitting of the full datafile. There were 12 items considered, which form three dimensions in accordance with the theoretical basis. CFA analysis confirmed good psychometric properties of the three-factor SLS-12 model based on EFA solution: χ²(47) = 146.802 (p ˂ 0.001); χ²/df = 3.123; CFI = 0.981, TLI = 0.973, RMSEA = 0.067 (90% CI 0.055-0.080), GFI = 0.952, AGFI = 0.921. SLS-12 subindices varied according to gender and relationship status. Based on ROC curve method, it may be assumed that scores on the SLS-12 ranging from 12 to 44 indicate a poor relationship, scores ranging from 45 to 52 a moderately good relationship, and scores of 53 to 60 a very good relationship. Improving and increasing the range of measures of love available to researchers remains an important task in supporting the progress of this area of research. Further research should be conducted among people of all ages living in both formal and informal relationships using the Short Love Scale-12 outlined in this paper.

Being the infidelity partner: Narratives of lived experiences in an online support group

Taking into account the secretive nature of infidelity experiences and their adverse impact on the involved partners, the aim of the present qualitative study was to examine how individuals—who have been engaged in extradyadic relationships, as “affair partners”—narrate their experiences in an online support group. The study analyzed 60 posts, published over a period of 6 months in an online support community. Three main themes emerged through the thematic analysis conducted. The first theme involved conflicting dimensions of affair partner experience, in which the following sub-themes were identified: 1) living in the shadow of loss, and 2) the prevalence of ambivalence: when opposite impulses coexist. The second theme refers to the centripetal aspects of the relationship and within this section the following sub-themes are defined: 1) the relationship as a supportive environment and 2) between plenitude and dearth: the desire for exclusivity. Finally, the third theme refers to the lessons learned by the affair partners and their generalizing conclusions such experiences. The present study underlines how group participants reconstruct their experiences of extradyadic relationships and how they create new ways of meaning making about them. The findings involve reflexive conclusions about intimate relationships capturing elements of broader cultural narratives, representations and dilemmas of self and relationships, as presented in written transactions in online support groups.

Cheating under the Circumstances in Marital Relationships: The Development and Examination of the Propensity towards Infidelity Scale

Most of the previously developed scales addressing infidelity were developed on young samples in dating relationships and with limited couple experience. The present study proposes an instrument to measure the proneness for infidelity among married people with substantial experience as a couple. Specific contexts described by the items, in which unfaithful behavior might occur, were selected from those revealed by previous research on people’s motives of past infidelity. Across two studies (N = 618) we examined the factorial structure and the psychometric characteristics of the Propensity towards Infidelity Scale (PTIS). Results revealed a one-dimensional structure of the PTIS and supported its reliability, its construct, criterion and incremental validity. PTIS emerged as negatively associated with two measures of adherence to moral standards, and positively related to past unfaithful behavior. Furthermore, the new instrument was found to bring a significant contribution in explaining these behaviors beyond two other scales of infidelity intentions.

Assessing Implicit Associations with Consensual Non-monogamy Among U.S. Early Emerging Adults: An Application of the Single-Target Implicit Association Test

Research has demonstrated that implicit and explicit attitudes toward consensual nonmonogamy (CNM; sexually and/or emotionally nonexclusive romantic relationships) are less favorable than those toward monogamy. Although this general pattern of results is often reported, it is not clear to what extent this implicit difference reflects negative associations with CNM. To investigate this issue, the current study assessed 355 U.S. early emerging adults' (89 men, 265 women, one gender nonconforming) implicit associations with CNM and monogamy using the Single-Target Implicit Association Test (ST-IAT). In addition, the convergent (using explicit measures), postdictive, and concurrent validity of the CNM ST-IAT was also investigated. The results revealed that although early emerging adults demonstrated a positive implicit association with monogamy (mean D score = 0.38), a neutral implicit association emerged for CNM (mean D score = 0.00). Additionally, young women and those without previous CNM experience demonstrated more negative implicit associations with CNM as compared to men and those with previous CNM experience. Finally, implicit associations with CNM predicted willingness to allow one's partner to participate in CNM, but not one's own interest in CNM. These results support previous research suggesting that a disparity in attitudes toward CNM and monogamy exists and provides further clarification reflecting positive implicit associations with monogamy and neutral associations with CNM. These results also confirm that monogamous relationships continue to be upheld as the ideal relationship structure in the U.S. and that educators/practitioners should work to reduce negative implicit bias toward CNM in an attempt to promote relationship equity.

Romantic Jealousy: A Test of Social Cognitive and Evolutionary Models in A Population-Representative Sample of Adults

Whereas sexually dimorphic evolutionary models argue for clear sex differences in responses to jealousy-evoking scenarios, social cognitive models emphasize the importance of other factors. This paper explores variables associated with responses to a commonly-used jealousy-evoking scenario in a population-representative sample. Data from 8,386 Australian men and women aged 16-69 were weighted to match the population. The results provided some support for evolutionary models among heterosexual respondents, but findings contrary to evolutionary models were found among non-heterosexual respondents. Support for social cognitive models was provided by the identification of six variables that had significant independent multivariate associations with jealousy: sex, age, education, lifetime number of partners, relationship status, and attitudes toward infidelity. The results suggest that although men and women may tend to respond differently to sexual or emotional infidelity scenarios, the anticipated experience of jealousy in each context is strongly influenced by biographical and cultural factors.

Walk the Line: How Successful Are Efforts to Maintain Monogamy in Intimate Relationships?

Monogamy, typically defined as sexual and romantic exclusivity to one partner, is a near-universal expectation in committed intimate relationships in Western societies. Attractive alternative partners are a common threat to monogamous relationships. However, little is known about how individuals strive to protect their relationships from tempting alternatives, particularly those embedded in one's social network. The current exploratory study was guided by the Investment Model, which states that satisfaction, investments, and perceived alternatives to a relationship predict commitment, which in turn predicts relationship longevity. The study aimed to identify relationship and extradyadic attraction characteristics associated with monogamy maintenance efforts, specifically relationship commitment, as predicted by the Investment Model. The efficacy of monogamy maintenance efforts was assessed via sexual and emotional infidelity measures at a 2-month follow-up. U.S. adults in heterosexual intimate relationships (N = 287; 50.2% male; M age = 34.5 years; M relationship length = 87 months) were recruited online to complete the survey study. Through structural equation modelling, the Investment Model structure was replicated, and relationship commitment predicted use of relationship-enhancing efforts as well as self-monitoring/derogation efforts. Individuals who experienced reciprocated attraction used significantly more avoidance and self-monitoring/derogation efforts than did those who experienced unreciprocated attraction. Ultimately, monogamy maintenance efforts did not significantly predict success in maintaining monogamy at follow-up. These findings have important research, educational, and clinical implications relating to relationship longevity.

The State of Sex Research in MFT and Family Studies Literature: A Seventeen-Year Content Analysis

The ability to conceptualize and treat sexual problems has been widely accepted as a crucial skill to master the MFT training. However, clients' sexual relationships are often ignored by clinicians because of a lack of experience or training, or personal discomfort. In this content analysis, we review sex and sex therapy research within MFT and family studies journals since the turn of the century. Of the 13,919 articles published within the 15 journals, 137 focused on sexuality or sex therapy. The articles were divided into five themes: sexual and relational health, sexual diversity, treatment and contributors of sexual dysfunction, sex therapy practices, and sexual education and development. Implications for clinical practices, sex therapy integration, and future research are discussed.

Stepping into their shoes: Reducing the actor-observer discrepancy in judgments of infidelity through the experimental manipulation of perspective-taking

The goal of the current study was to examine whether perspective-taking could be an effective method for reducing the actor-observer bias seen in judgments of infidelity. Specifically, 708 adults judged the extent to which 32 behaviors were indicative of infidelity after being assigned to one of nine conditions in which the person engaging in infidelity (actor, partner, stranger) and the perspective-taking instructions (perspective-taking, stay objective, no instructions) were manipulated. Overall, the actor-observer and perspective-taking manipulations significantly affected judgments of the technology/online and solitary forms of infidelity. Adults in the perspective-taking condition judged their partner's and a stranger's technology/online behaviors as less indicative of infidelity than their own and their partner's solitary behaviors as more indicative of infidelity than their own or a stranger's. These results indicate that perspective-taking impacts infidelity judgments but only for certain behaviors. Implications and recommendations are outlined for clinicians and researchers working with and studying romantic couples.

The influence of a rival’s (in)fertility on jealousy and the allocation of blame following a mate’s infidelity

Selective pressures throughout evolutionary history have caused the adaptation of sex-specific responses to dilemmas that are relevant for reproductive fitness. Sex differences in imagined jealousy due to infidelity are well documented, but past work does not consider the influence of reproductive capability (i.e., being fertile versus infertile) on responses. Relying on an online survey of 369 adults, we hypothesized that infidelities involving an infertile interloper lead to less jealousy than infidelities involving a fertile interloper. Further, for sexual infidelity, regardless of the interloper’s fertility, we hypothesized men would allocate the most responsibility to their partner and women would do so for the interloper, given women are assumed to behave with more intention. This hypothesis was partially supported; while men did allocate the most responsibility to their mate, so too did women, but women also blamed the interloper more than men. With regards to emotional infidelity, again independent of the interloper’s fertility, we hypothesized men will primarily hold their partner responsible. However, we hypothesized that women will again consider the interloper responsible, but also their partner, due to concerns over fear of losing access to needed resources. This prediction was partially supported, as both sexes primarily hold their partner most responsible, and women held the interloper more accountable than did men. The findings shed light onto how individuals assess relationship threats and allocate responsibility, according to reproductive capability.

Qualitatively Derived Definitions of Emotional Infidelity Among Professional Women in Cross-Gender Relationships

We aimed to define emotional infidelity among professional women who are in monogamous, cross-gender romantic relationships. We used constructivist grounded theory to capture participants’ lived experiences, perspectives, and worldviews. Eight currently partnered, self-identified women, established in their careers, and between the ages of 32 and 49, engaged in semi-structured initial, and brief follow-up, telephone interviews. Our data analysis and integration of participants’ perspectives and experiences revealed three main categories: (1) defining emotional infidelity, (2) how emotional infidelity occurs, and (3) relationship safeguarding. We developed a substantive, though preliminary, definition of emotional infidelity grounded in the literature and based on eight women’s discussion of emotional infidelity. Our hope is that researchers and practitioners would use this definition both as a model for investigating other population-specific definitions of emotional infidelity, and for better understanding and intervening upon relational processes related to emotional infidelity.

A Systematic Review of Gay, Lesbian, and Bisexual Research Samples in Couple and Family Therapy Journals

The purpose of this study is to review samples from research on gay, lesbian, and bisexual (GLB) issues and to evaluate the suitability of this body of research to support affirmative and evidence-based practice with GLB clients. The authors systematically reviewed the sampling methodology and sample composition of GLB-related research. All original, quantitative articles focusing on GLB issues published in couple and family therapy (CFT)-related journals since 1975 were coded (n = 153). Results suggest that within the GLB literature base there is some evidence of heterocentrism as well as neglect of issues of class, race, and gender. Suggestions to improve the diversity and representativeness of samples-and, thus, clinical implications-of GLB-related research in CFT literature are provided.

A Content Analysis of Quantitative Research in Journal of Marital and Family Therapy: A 10-Year Review

We examined the trends of quantitative research over the past 10 years in the Journal of Marital and Family Therapy (JMFT). Specifically, within the JMFT, we investigated the types and trends of research design and statistical analysis within the quantitative research that was published in JMFT from 2005 to 2014. We found that while the amount of peer-reviewed articles have increased over time, the percentage of quantitative research has remained constant. We discussed the types and trends of statistical analysis and the implications for clinical work and training programs in the field of marriage and family therapy.

Extradyadic involvement and relationship dissolution in heterosexual women university students

This study examined the role of extradyadic involvement (EDI) in heterosexual dating relationships among young adult females (N = 539). A considerable percentage of participants (36 %) reported that they had engaged in an extradyadic emotional or sexual relationship within the last 2 months. Results from logistic regression analyses supported the general hypothesis that emotional and sexual EDI were both significantly associated with relationship dissolution. These associations remained strong even after controlling for participants' age, relationship duration, and relationship quality. The findings also showed that the strength of the association between acts of emotional or sexual extradyadic behaviors and relationship dissolution was linked to relationship quality, gender of the actor, and type of EDI (emotional vs. sexual). Specifically, compared to participants who reported poor relationship quality, those who reported high relationship quality were more likely to end the partnership if they reported emotional or sexual EDI. Findings suggest that individuals in higher quality relationships appear to have considerably more to lose in their relationship when emotional or sexual EDI occurs. This, in part, may be because the more satisfactory the relationship the more disillusionment one may feel when betrayed by their romantic partner. Overall, the present findings underscore the multifaceted nature of the relationships between EDI and relationship dissolution. We call for more research that rigorously examines what contextual factors influence young adults in dating relationships to dissolve relationships following EDI.