毕竟你已不再属于我
[bì jìng nĭ yĭ bù zài shŭ yú wŏ]
It translates to "After All, You Belong to Me No More", representing lost ownership over something precious, usually denoting a breakup or losing a close relationship. It reveals disappointment, resignation, or even anger, depending on personal interpretation, after accepting the fact of change that breaks the original status.