往我心开一枪后说对不起
[wăng wŏ xīn kāi yī qiāng hòu shuō duì bù qĭ]
Literally 'Shoot at my heart then say sorry', this expresses dramatic pain or betrayal, reflecting deep hurt inflicted casually or insincerely apologized, revealing sorrow, anger, and disappointment towards such behavior.