他是我的毒解药也没用
[tā shì wŏ de dú jiĕ yào yĕ méi yòng]
Translated directly it means 'He is poison even if there was an antidote'. This could express deep affection towards someone considered harmful or unhealthy. Despite knowing their negative influence (or 'poison'), still finds oneself drawn irresistibly toward them regardless.