The phrase "breaks one's heart" implies a sense of deep sorrow or disappointment. However, there are several antonyms (opposite words) that convey positive emotions instead.
Firstly, the phrase "mends one's heart" suggests that a broken heart has been healed and that joy has been restored. Similarly, "lifts one's spirits" conveys a sense of happiness and optimism. Other antonyms for "breaks one's heart" could include "fills one with happiness," "brings joy," "renews hope," and "gives comfort."
Using these antonyms can help to reframe a difficult situation and focus on the positive aspects of life, even in the midst of disappointment.