This study explored the acceptability of Relationship-Centered Communication Partner Training (RC-CPT) for couples impacted by aphasia. Three couples participated in the program across two sessions. Surveys were administered to assess outcome measures of their marital relationship and communication confidence before and after participation in RC-CPT. The quantitative findings were analyzed using descriptive statistics. Overall, participants generally maintained or experienced improvements in accessibility, responsiveness, engagement, conflict, conflict resolution, and communication within their marriage after participating in RC-CPT. Additionally, individuals with aphasia demonstrated enhanced communication confidence scores. During the third session, couples completed a semi-structured interview to share their experiences with the program. The interviews were transcribed orthographically and coded using reflexive codebook analysis. Reflexive codebook analysis of the semi-structured interviews revealed four prominent themes: (I) "Impact on Communication," (II) "Impact on Relationship," (III) "Impact on Psychosocial Well-Being," and (IV) "Feedback for Future Development". The convergence of the quantitative and qualitative data revealed that couples indicated positive changes in their communication, relationship, and psychosocial well-being. These findings suggest that RC-CPT has the potential to effectively address both communicative and psychosocial impacts of aphasia on couples. Moreover, this study highlights the promise of RC-CPT as a relationship-centered counseling tool, warranting further exploratory and experimental research.