Interference and facilitation from partners in the development of interdependence within romantic relationships

To clarify how interdependence develops, we employ Berscheid's (1983) emotional investment perspective to illuminate the ways intimacy maps onto interference and facilitation from romantic partners. We conducted a cross-sectional, self-report study involving 498 individuals. As anticipated, we found a small nonlinear association between intimacy and interference from partners, a positive association between intimacy and facilitation from partners, and an interaction between intimacy and influence from partners that predicted interference. Notably, however, intimacy did not interact with influence to predict facilitation. Interference and facilitation were positively correlated at the bivariate level and negatively correlated when influence was covaried. We discuss how our findings characterize developing interdependence across the life span of courtship.