break someone's heart

/B R EY1 K S AH0 M W AH0 N EH0 S AA0 R T/
verb
  1. 1

    To cause a person to feel grief, disappointment or sadness.

    โ€œHe broke my heart, so I broke his jaw.โ€

Source: https://en.wiktionary.org/wiki/break%20someone's%20heart