若爱你如果会中毒恐怕我已病入膏肓
[ruò ài nĭ rú guŏ huì zhōng dú kŏng pà wŏ yĭ bìng rù gāo huāng]
'If loving you is a poison, then I am terminally ill.' Using metaphor, this conveys that the person’s love might be harmful but feels inevitable, expressing deep passion mixed with a sense of helplessness.