看着你和她我连呼吸都带疼
[kàn zhe nĭ hé tā wŏ lián hū xī dōu dài téng]
'Seeing you with her even my breathing hurts.' It poignantly expresses heartache experienced when observing one's crush or former partner being together with another. Deep emotional turmoil, jealousy, and unresolved feelings are vividly depicted through these words.