怪我太天真把你当爱人
[guài wŏ tài tiān zhēn bă nĭ dāng ài rén]
'Guai wo tai tianzhen ba ni dang airen' stands for 'Blame me for being too naive to regard you as lover'. Conveys regretful feelings on misplacing trust or affection based on an immature or unsophisticated judgment.