This study tested the relationships between mental the models of attachment, the attributions romantic couples make for their own and their partners' behaviors, and relationship quality. Participants (n = 352) who were currently involved in a romantic relationship completed multiple measures of attachment, attributions, and relationship quality. Results revealed that secure people reported less maladaptive attributions than insecure people. In addition, structural model analyses indicated that attachment model of the self (but not the model of others) had both a direct and an indirect effect, mediated by attributions made for negative partner behavior, on relationship satisfaction. Attributions made for self- and partner behaviors overlapped to a great extent, implying an attributional style underlying this unique response pattern. These findings suggest that a positive model of self is a valuable personal resource that enhances adaptive attributions, and hence, leads to high levels of relationship quality.