爱你的人终究不是我
[ài nĭ de rén zhōng jiū bù shì wŏ]
Translated as 'The person who ends up loving you is not me,' it conveys a deep regret from someone who acknowledges that despite their feelings for another person, that affection will not be reciprocated. The individual expressing this has come to the painful realization that the one they care about might not choose them in the end.