This study had two objectives: to determine the levels of acceptance and forgiveness reported by patients with borderline personality disorder (BPD) and personality-disordered comparison subjects and by recovered versus non-recovered patients with BPD over 20 years of prospective follow-up. Levels of acceptance and forgiveness were reassessed every 2 years. Patients with BPD reported levels of these states that were approximately 70% lower than comparison subjects at baseline. These states increased significantly over time for patients with BPD but not for comparison subjects. Recovered patients with BPD reported approximately three times the levels of these states than non-recovered patients with BPD. These levels increased for both groups over time; one state (accepting of myself) increased at a significantly steeper rate for recovered patients with BPD. These results suggest that patients with BPD report becoming more accepting and forgiving over time. Additionally, recovery status is significantly associated with increasing time in these states.