We examined affection-giving, affection-denying, respect-giving, and respect-denying behaviors among men and women in heterosexual relationships. In a pilot study, although we had expected the latent variables of affectionate and respectful behaviors to emerge from exploratory factor analyses, we obtained the latent variables of socioemotional rewards and costs instead. In the main study, we replicated the factor patterns of socioemotional rewards and costs in confirmatory factor analyses. Moreover, we entered men’s and women’s self-reported narcissism alongside men’s and women’s socioemotional rewards and (...) costs, as reported by partners, into a dyadic model that we tested via covariance structure analyses. Results revealed that, although men and women reciprocated rewards as well as costs, narcissism was not reflected in the patterns of reciprocity We discuss implications for studies of relationship processes as two-person group dynamics. (shrink)