Drawing from theoretical models of emotion and aspects of interdependence t
heory, we investigated the association among need fulfillment, relative dep
endence, and emotional experience within romantic relationships. Daily self
-reports of general and relationship-related emotional experience and perce
ived fulfillment of relationship needs were collected on four consecutive d
ays from participants involved in romantic relationships. Consistent with h
ypotheses, fulfillment of relationship needs was found to significantly pre
dict emotional experience, with the association at times moderated by the g
eographic distance of the relationship (local versus long-distance). In add
ition, participants in relationships characterized by an inequality of depe
ndence experienced less positive and more negative relationship-related emo
tion than did participants in mutually dependent partnerships.