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We hypothesized that dissimilar mate preferences would augment friendship attraction in zero-acquaintance interactions whereas similar mate preferences would hinder friendship attraction. Heterosexual participants completed an online survey to assess their mate preferences. They also rated the attractiveness of opposite-sex photos. Next, they attended a 3-hr speed-friending session in which they interacted with same-sex others for 3-min each. After each interaction, they completed a 2-min assessment about the person they just met. Two sessions were held, one for women (N = 20) and one for men (N = 18). The social relations model was used to regress unique feelings of friendship attraction on similarity in terms of mate preferences while controlling for perceiver and target variance. Our hypothesis was supported among men: Interactions in which two people differed in mate preferences were rated more positively than those in which participants had similar mate preferences. These results are consistent with Parental Investment Theory and highlight the importance of mate preferences in friendship attraction among men. [ABSTRACT FROM AUTHOR]

Mate value discrepancies (MVDs) predict multiple outcomes in romantic relationships, including relationship satisfaction, jealousy, and forgiveness. We tested the hypotheses that MVDs would predict anger and shame in response to both medium and strong transgressions within romantic relationships. Participants in long-term committed relationships read scenarios describing relational transgressions and rated how much anger and shame they would feel if they were either the victim or the perpetrator of the transgressions in their current relationship. We found partial support for our hypotheses. Victims of medium-level transgressions were angrier the more alternative potential mates there were that were closer to their ideal mate preferences than their current partner. Perpetrators of strong transgressions felt more shame the higher in mate value their partner was compared to them. Results suggest that different MVDs may predict different outcomes in relationships and highlight the importance of using functional theories of emotions to predict individual differences in emotional responses. [ABSTRACT FROM AUTHOR]