Non-Monogamous Relationships and Jealousy: New Insights

A recent study published in Evolution and Human Behavior indicates that individuals in consensually non-monogamous relationships typically experience less jealousy compared to those in monogamous relationships. However, feelings of being less desirable than a partner cause similar stress in both types of relationships. The study explores a psychological concept known as mate value discrepancy (MVD), which measures the perceived gap in attractiveness, intelligence, or success between partners.

Study Overview

The researchers surveyed 512 individuals from 62 countries, including 312 in monogamous and 200 in consensually non-monogamous relationships. Participants assessed their own value as partners and navigated challenges like jealousy and conflict. Tools utilized by the team included recognized psychological methods to evaluate mate value, mate guarding, conflict, and relationship maintenance behaviors.

Impact of Feeling Less Desirable

Within both monogamous and non-monogamous groups, individuals who perceived themselves as less desirable than their main partner reported increased conflict and rivalry with others. This aligns with existing research on monogamous couples; feeling less desirable can induce insecurities and perceived threats to the relationship. These feelings potentially lead to jealousy and controlling behaviors aimed at retaining the partner.

Dynamics with Secondary Partners

In non-monogamous setups involving secondary partners, the relationships displayed a reverse trend. Here, feeling more desirable than a secondary partner often resulted in increased conflict and effort to maintain the relationship. This contrasts with the dynamics seen with primary partners.

The Role of Communication and Hierarchy

Across both relationship types, communication emerged as a critical factor in reducing relationship problems. Open discussions about attraction and jealousy, and feeling happy about a partner’s intimacy with another, were linked to fewer issues. Conversely, ranking partners hierarchically exacerbated feelings of jealousy, rivalry, and resentment.

These findings suggest that consensually non-monogamous relationships are not inherently free from jealousy as previously assumed. Both monogamous and non-monogamous individuals experience similar vulnerabilities regarding desirability perception. Though monogamy is culturally prevalent, the insights gained could assist counselors and educators in addressing relationship challenges across various structures.