Overall, the findings in this paper highlight the nuanced psychological nature of extradyadic behavior for Ashley Madison users. The descriptive results suggest that people’s experiences with affairs are counterintuitive and, at times, self-contradictory. On one hand, participants reported strong feelings of love toward their primary partners/spouses that would ostensibly impede them from cheating. On the other hand, they also derived considerable physical and emotional pleasure from their affairs and expressed little regret. There were also inconsistent expressions about the monogamous/exclusive nature of their relationships. A small percentage (< 15%) of our sample indicated that they were in consensually non-monogamous relationships, suggesting that they had their partners’ permission to use Ashley Madison to find paramours. However, many of these same participants indicated elsewhere in the survey that their relationships were exclusive or that they did not have an open relationship with their partners. Some participants’ inconsistencies may be because they have not had discussions with their partners about monogamy in their relationships, which is a common phenomenon that leads to misunderstandings and disagreements about infidelity (Warren et al., 2012). Regardless, similar patterns of results emerged whether the participants who reported being in CNM relationships were retained or excluded.
For a sample of people aspiring to have affairs, participants expressed high amounts of romantic love toward their partners, with moderate amounts of satisfaction and conflict, and many taking significant steps to improve their relationships (e.g., marital counseling). Moreover, participants also felt positively about themselves, scoring well on life satisfaction. These factors would ostensibly redirect people away from having affairs. Sexual satisfaction, or lack thereof, appeared to stand out as a variable of interest, with about half of participants saying they were not sexually active with their partners. Sexual dissatisfaction was the strongest motivator for those in our sample to pursue affairs. Our participants also reported high emotional and sexual satisfaction with their affairs, and little regret. In a sense, these results mirror the results from prior studies on attitudes and incidence of infidelity, which most people view disapprovingly, and yet, is commonly experienced.
Some, but not all our directional predictions, were supported by the data. Dyadic variables were not associated with infidelity. Relationship quality (satisfaction, intimacy, conflict) did not predict having affairs, nor did it predict affair regret, nor did it decrease as a function of whether participants had affairs. This challenges findings from some prior work which has shown relationship investment as a key predictor of infidelity in young adults (Drigotas et al., 1999), and that affairs are linked with decreased relationship quality outcomes. However, independent of affairs, relationship quality did (negatively) predict the likelihood of relationship dissolution over time, which is consistent with prior work.
Participants’ motivations for having affairs, which included dyadic factors like anger and sexual dissatisfaction, were linked with worse relationship quality at Time 1, while motivation for autonomy, a non-dyadic factor, was linked with better relationship quality. This is consistent with prior work showing that as people experience relationship deficits, their motivations for affairs reflect those deficits, and that infidelity motivations are not monolithic (Selterman et al., 2019). However, these motivation variables did not predict changes in relationship quality or life satisfaction over time for those who reported having affairs. This shows some preliminary evidence that relationship deficits precede infidelity motivations, but not the other way around. Separately, sexual dissatisfaction predicted an increased likelihood of relationship dissolution/divorce, while lack of love and situational factors were associated with remaining together. This shows how different motivations for infidelity are differentially associated with relationship stability in the long-term. Among those who reported affairs, sociosexuality and motivations for variety and autonomy were not associated with happiness or self-esteem. Sociosexuality did predict sexual satisfaction with affair partners, but autonomy predicted lower sexual satisfaction.
The findings from our sample of Ashley Madison users paint a picture of infidelity experiences that does not follow key assumptions long held in the literature on close relationships. These assumptions include the notion that because infidelity is widely considered immoral and is sometimes linked with conflict and intimate partner violence, therefore those who choose to have affairs must have suboptimal relationships (Barta & Kiene, 2005; Thompson, 1983) or behave in significantly different ways compared to those who maintain sexual exclusivity. We did not observe a robust pattern in our data which would support these ideas. Relationship quality (satisfaction, conflict) was not systematically linked with having affairs. One possible explanation is that there are non-dyadic motivations for infidelity that stem from things like self-esteem, desire for variety, and situational factors, rather than from deficits in people’s marriages or partnerships (Selterman et al., 2019).
Furthermore, relationship quality did not predict feelings of regret after affairs in our sample, nor positive perceptions of alternative partners. Prior studies have pointed to factors such as commitment and interdependence are linked with motivations to derogate or devaluate potential alternatives (Johnson & Rusbult, 1989; Lydon et al., 2003; Miller, 1997). But our participants’ responses to items assessing their perceptions of alternatives (e.g., “Others on the site didn't seem like my type”) were not associated with measures of their marital/relationship quality. Put another way, we found weak evidence that relationship quality was linked with derogation of alternative partners. In addition, affair motivation variables stemming from dyadic elements (such as anger, lack of love, or sexual dissatisfaction) were paradoxically associated with greater concurrent relationship quality, and they did not predict changes in relationship quality or life satisfaction over time.
Circling back to one of the central questions we posed in our introduction, it may seem paradoxical that infidelity would be so widely frowned upon, and yet so common. Our results provide clues as to why extradyadic behavior is normative, in large part because the relationships of cheaters appear similar to the relationships of non-cheaters, at least in the eyes of the individuals who are committing infidelity (their partners may feel differently). Some people may pursue affairs even if their satisfaction is high or perceived conflict is low (Glass & Wright, 1985). Although this may be surprising to those who have long assumed key benefits to monogamous relationships, including higher satisfaction, those who study consensual non-monogamy recognize this alleged benefit is a myth (Conley et al., 2013, 2017). Monogamy comes with trade-offs, and relational or emotional outcomes are not universally positive.
In terms of strengths and limitations, we note several. We planned several analyses with our longitudinal data, anticipating that Sample C, which consisted of matched participants across T1 and T2, would be much larger. However, the matched Sample C was much smaller than the two cross-sectional samples A and B. Thus, we have more confidence in the conclusions from the cross-sectional data, and conversely, we urge caution against overextrapolation from our longitudinal findings (particularly with binary outcomes such as breakups at T2, which were quite underpowered) before they can be independently replicated. We suggest future studies extend on our work by further probing developmental antecedents and outcomes of infidelity.
Our sample reflects a population of middle-aged adults, most of whom are married, in contrast to young adult college students in dating relationships whose infidelities are more frequently studied in the literature. Our findings may generalize to populations of similar age and relationship status, but it may also be possible that Ashley Madison users are somehow different from those who have affairs through other means. Ashley Madison users are investing time, energy, and money into the pursuit of infidelity, whereas others may have affairs that originate more passively. Our sample was also skewed in terms of gender representation as most participants were men (84–90% across samples), which limited our ability to conduct analyses gender as a predictor of infidelity experiences. It may be the case that our findings generalize more to men who have affairs than to women or non-binary individuals.
Existing data suggest that most people who commit infidelity report having affairs with others that they already knew rather than through matchmaking apps (Labrecque & Whisman, 2017), although such services are growing in popularity especially in recent years (Dietzel et al., 2021; Wiederhold, 2021). The existing data do not yet support the idea that Ashley Madison users represent a distinct group relative to others who cheat, although we suggest treating this as an open question for which future research will bear evidence on. At this point, we recommend caution before overgeneralizing findings from Ashley Madison users to the wider population of affair-seekers. It may also be the case that Ashley Madison users are also meaningfully different from affair-seekers who use other internet platforms such as Second Love, although again, presently, we have no data to support this notion. Furthermore, whereas websites/apps such as Ashley Madison offer users additional opportunities to engage in affairs, we do not have data on relationship outcomes for these affairs compared to affairs that originate offline.
Separately, some of our participants indicated having a non-exclusive or consensually open relationship with their primary partners. This group of consensually non-monogamous folks who use websites like Ashley Madison (which facilitate affairs) may be different in some ways compared to others in open relationships who prefer other means of finding extradyadic partners. Some who practice ethical non-monogamy insist that their paramours either be single or in consensually open relationships themselves.
Infidelity remains highly socially stigmatized and there can even be legal consequences for marital adultery, which would theoretically serve as barriers to infidelity. In contexts where infidelity or non-monogamy more broadly are frowned upon, attitudes and experiences are likely to be more restricted, and our current study does not allow for such sociocultural comparisons. Finally, our data do not pertain to lifetime infidelity behaviors, so we did not address questions about developmental aspects of infidelity, either within persons or within relationships.