break someone's heart

US /breɪk ˈsʌm.wʌnz hɑːrt/
UK /breɪk ˈsʌm.wʌnz hɑːrt/
"break someone's heart" picture
1.

to cause someone to feel great sadness or disappointment, especially in love

:
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It would break my heart if you left me.
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She didn't want to break his heart by telling him the truth.
:
someone's heart sinkssomeone's heart is in their mouthgive someone a breakheartbreakbreak-inbreak into