Purpose (1) To understand the impact of adult cochlear implantation on the partner relationship, as perceived by adult cochlear implant (CI) recipients and their intimate partners. (2) To generate a conceptual framework for guiding future research and clinical adult cochlear implantation interventions. Method Concept mapping, a participatory, mixed-method approach, was used for data collection, analysis and interpretation. Participants attended sessions to generate, sort and rate statements describing the changes in their relationship due to cochlear implantation. Participants included 15 CI recipients (mean age: 51.6 years; SD: 8.2) and 12 partners (mean age: 50.9 years; SD: 8.2). Results Five concepts emerged from the data, describing changes in the partner relationship following cochlear implantation: (1) Social Interactions, (2) Partner Involvement, (3) Communication, (4) Emotional Adjustment, and (5) Relationship Intimacy. The concept Relationship Intimacy was rated the highest in positivity and importance. Findings also underscored improved social interactions, communication dynamics, and emotional adjustment. Conclusions The Relationship Intimacy cluster emerged as pivotal, highlighting its essential role in improving post-implantation relationships. CI recipients experienced enhanced autonomy, while partners’ roles evolved regarding assistance and support. The diverse effects of implantation on partner relationships highlight the importance of adopting a patient- and family-centered approach to audiological intervention.