爱你爱到痛了自己
[ài nĭ ài dào tòng le zì jĭ]
'Loving You Until It Hurts Myself'. This implies a very intense, possibly unhealthy love experience - loving someone so deeply and completely that even knowing it harms oneself physically or emotionally one can't stop or help falling further into it. There can also be some bitterness in realizing how unrequited or harmful this affection has been.