When adults are dissatisfied with their romantic relationships, they are more likely to tolerate cheating. This psychological connection is highly influenced by a person’s basic willingness to participate in a casual sexual encounter. These findings were recently published in the journal Sexual and Relationship Therapy.
Romantic relationships require a continuous investment of time and emotional energy. Psychologists often use the investment model of commitment to understand why people remain loyal to their pairings. This model suggests that satisfaction, the pure quality of the relationship, and the attractiveness of alternative partners all interact to determine a person’s loyalty.
Unmet needs in the primary relationship often drive people to seek intimacy elsewhere. A lack of sexual or emotional satisfaction can weaken the boundaries that usually prevent unrealistic relationships. Still, not all unhappy partners inevitably embark on an affair, prompting researchers to look for underlying personality traits that make a difference.
Humans have varying levels of tolerance for sexual intimacy without commitment. Psychologists call this trait sociosexual orientation, and it’s a concept that helps explain vast differences in romantic behavior. People with an open-ended orientation are also very comfortable with physical intimacy outside of a committed romantic bond. They do not feel that love or emotional attachment is absolutely necessary to enjoy a sexual encounter.
Conversely, people with a restricted sociosexual orientation typically require a deep emotional bond before engaging in physical intimacy. They prefer long-term strategies and heavy emotional investment in a single partner. In modern psychological assessments, sociosexual orientation is generally categorized into three distinct components. These include past behavioral tendencies, personal attitudes toward casual intimacy, and an ongoing psychological desire for noncommittal encounters.
In the modern dating environment, maintaining loyalty can be uniquely difficult for some people. Dating apps and digital messaging platforms provide a constant stream of alternative options for dissatisfied partners. For those with open-ended tendencies, this modern ease of access may make it even easier to adopt dishonest mindsets.
Past research has linked unrestricted sexual orientation to an increased likelihood of cheating. Less understood is how day-to-day fluctuations in the primary relationship interact with these personal characteristics to shape beliefs about infidelity. Kashish Pandey, a researcher at the Indian Institute of Technology, Delhi, and his colleagues wanted to map this particular psychological pathway.
Pandey, along with Priyanka Tiwari, Taranjeet Duggal, and Khusboo K from Manav Rachna International Institute of Research and Studies, designed a study to test these interactions. They wanted to see if a person’s basic views on casual sex bridge the gap between a difficult relationship and a willingness to cheat. The researchers also investigated whether gender changed these dynamics, given the different social pressures placed on men and women around the world.
Researchers recruited 303 adult participants from local areas, including Delhi, India. The sample included 135 men and 168 women, ranging in age from 18 to 65 years. The majority of these individuals were young people between the ages of 18 and 24.
Participants reported a variety of relationship statuses. Just over half of the respondents are currently dating someone. The remainder lived with their partners in loosely defined casual arrangements or were engaged in relationships that they simply defined as fluid.
To collect data securely and anonymously, the researchers used an online assessment tool. Participants received a digital link to a survey designed to be completed within 10 minutes. The first section utilized a widely used psychological survey called the Revised Sociosexual Orientation Inventory. This test asks respondents to rate their agreement with statements about their sexual desires and past behavior.
The research process also utilized a nine-question assessment designed to capture relationship quality. This measure asks participants to rate their current level of happiness and satisfaction with their partner. Finally, the team administered an Attitudes Toward Infidelity Scale to measure how accepted participants detected infidelity in different scenarios.
After performing statistical analysis on the survey results, the researchers noticed clear patterns across demographics. Lower relationship quality was correlated with more positive attitudes toward infidelity. Participants who were dissatisfied with their current partner considered an external close relationship to be much more acceptable than a partner in a successful partnership. This baseline finding was consistent with expectations based on previous research on marital dissatisfaction.
The analysis also found that this was not a direct emotional jump from unhappiness to approval of things. Instead, a person’s sociosexual orientation served as an intermediate variable. In general, people with less fulfilling relationships were more likely to hold an open-ended view of casual intimacy.
General tolerance toward committed intimacy specifically predicted more tolerant attitudes toward cheating. Researchers call this sequence of psychological events the mediating pathway. Essentially, a poor relationship environment can activate or strengthen a person’s existing tendency toward unrestricted intimacy.
This phenomenon is consistent with a psychological concept known as self-concordance theory. Socially unconstrained people often experience an increased sense of well-being after a casual sexual encounter because their behavior is consistent with their inner values. If the primary relationship fails to provide satisfaction, an open-ended person may organically lean toward ideas that feel authentic to their personal nature.
Gender also varied the strength of this psychological pathway. Survey data showed that men tend to have higher baseline levels of unrestricted sociosexual orientation than women. When relationship quality declined, men were more likely than women to view external sexual partners favorably.
The study authors contextualized this sex difference within the framework of evolutionary psychology. They referenced sexual strategy theory, which proposes that male and female mating behavior evolved under different reproductive pressures. According to this perspective, ancestral men gained reproductive advantage by seeking multiple partners over the course of their lives.
In contrast, ancestral females had a heavier biological burden of parental investment, leading to more selective mating strategies. Beyond evolutionary theory, the researchers also pointed to strictly sociological explanations. In many closed societies, men experience far less social stigma against promiscuity than women.
Because of the higher physical and social risks associated with extramarital sex, women may maintain less favorable attitudes toward infidelity, even if they are highly dissatisfied with the relationship. The authors noted that the current study has several methodological limitations. Because this study relies on observational data collected at a single time point, the results cannot establish a strict causal relationship.
It’s still quite possible that an innately high interest in casual physical intimacy can directly cause a decline in couple happiness, rather than the other way around. To better understand this timeline, future scholars will need to follow couples for several years. Such a longitudinal approach could track how attitudes change organically as relationships evolve and daily challenges are faced.
Current measures reflect only mental attitudes and self-reported temperament. Positive thoughts about infidelity do not necessarily lead to actual infidelity. The jump from a temporary thought to a physical relationship comes with many other behavioral hurdles. A partner may fantasize about another partner but not act on the idea due to personal morals or logistical barriers.
In the future, researchers may be able to investigate how other life variables influence the behavioral boundaries of fidelity. Incorporating indicators such as religious beliefs, career stress, and overall mental health may provide a broader context for relationship conflicts. Replicating the study among older age groups may yield different results because long-term motivations are often different in older age groups.
Understanding these psychological pathways directly benefits modern therapeutic practice. Relationship counselors can use these insights to tailor their approach depending on the client’s baseline sociosexual orientation. This finding highlights the absolute importance of emotional transparency and active problem solving in romantic bonds.
Addressing relationship flaws early may prevent partners from seeking external validation. By fostering open communication channels, couples can address dissatisfaction before it turns into a positive view of external intimacy. This proactive approach will ultimately help protect the psychological health of both partners.
The study, “The Entanglement of Infidelity and Relationship Quality: Parallels between Theory and Practice with a Moderated Mediation Analysis,” was authored by Kashish Pandey, Priyanka Tiwari, Taranjeet Dugal, and Husboo K. Kennedy.
