不爱你的人就勇敢离开她
[bù ài nĭ de rén jiù yŏng găn lí kāi tā]
'Leave the one who doesn't love you bravely' is encouraging one to end the affection or attachment when faced with someone who does not love oneself. It conveys courage, determination, and confidence on an emotional level, urging the reader (or perhaps self) to take proactive actions rather than waiting helplessly in an unreciprocated relationship.