<p>These studies examined the links that mate value and mate value discrepancies had with indicators of romantic relationship functioning (i.e., satisfaction, investment, commitment, and quality of alternatives) in two samples: college students from the USA (Study 1; <i>N</i> = 454) and community members from Israel (Study 2; <i>N</i> = 1764). Both studies showed that perceived mate value congruence, particularly at higher levels, was linked with better relationship evaluations, such as greater satisfaction and commitment. However, the results for mate value discrepancies were more complex. In both samples, individuals who perceived their mate value as higher than their partner’s mate value tended to report negative relationship functioning (e.g., low satisfaction). Interestingly, the opposite discrepancy (believing one’s mate value was lower than their partner’s mate value) had divergent connections with outcomes across studies. For community members from Israel, being “over-benefited” was linked to positive relationship evaluations, whereas it was associated with negative evaluations for college students from the USA, possibly due to concerns about their partner being “out of their league.” These findings highlight the complexity of the connections that perceptions of mate value have with indicators of romantic relationship functioning.</p>