The phrase "eats heart out" implies a sense of envy, jealousy, or frustration. Some antonyms for this expression could include feelings of satisfaction, contentment, or happiness. Instead of eating one's heart out, one could experience a sense of relief, appreciation, or even admiration. Other antonyms could include feelings of indifference, detachment, or apathy. Rather than dwelling on negative emotions or resentments, choosing to focus on positive and uplifting feelings can improve overall well-being and enhance interpersonal relationships. By seeking out antonyms for "eats heart out," we can cultivate a more positive and fulfilling mindset.