可惜我不是她不会让你爱我
[kĕ xī wŏ bù shì tā bù huì ràng nĭ ài wŏ]
Translates to 'It’s unfortunate that I’m not her—I would never let you love me.' It speaks about unrequited feelings and an unmet romantic alternative, implying sadness and regret in love dynamics.