Self-compassion (SC) involves being kind to oneself when confronting personal inadequacies or situational difficulties, framing the imperfection of life in terms of common humanity, and being mindful of negative emotions so that one neither suppresses nor ruminates on them. The current study explored whether being self-compassionate is linked to healthier romantic relationship behavior, such as being more caring and supportive rather than controlling or verbally aggressive with partners. A total of 104 couples participated in the study, with self-reported SC levels being associated with partner reports of relationship behavior. Results indicated that self-compassionate individuals displayed more positive relationship behavior than those who lacked SC. SC was also a stronger predictor of positive relationship behavior than trait self-esteem (SE) or attachment style. Finally, partners were able to accurately report on each other’s SC levels, suggesting that SC is an observable trait.