Using sequenced conflict interaction scenarios, this study tested Rusbult and colleagues’ partner accommodation framework. In addition, we examined the unique effects of relationship-specific hope, a variable we argue contributes to constructive conflict communication in adult romantic relationships. Results generally, but not completely, supported the predictive power of the partner accommodation model. Consistent with predictions, relationship-specific hope positively predicted partner accommodation in multiple scenarios. Moreover, relationship-specific hope positively predicted postconflict relational evaluations through its effects on partner accommodation. Supporting the tenets of hope theory, relationship-specific hope was found to be a more robust predictor of accommodation in multiple scenarios when partner responses were nonconciliatory (compared with conciliatory). This suggests that hope is most consequential to relational communication in especially trying relational circumstances. We interpret our findings, and their implications, based on interdependence theory, hope theory, and existing conflict management research.