我是有多蠢才会爱上你
[wŏ shì yŏu duō chŭn cái huì ài shàng nĭ]
Translating into something as raw as ‘How stupid must I be to fall in love with you? ’, it reflects regret about a past choice to engage romantically with someone whom they now feel made poor judgment. It can be sarcastic or genuinely self-depreciative.