只有遍体鳞伤才相信分手了
[zhĭ yŏu biàn tĭ lín shāng cái xiāng xìn fēn shŏu le]
This username implies that someone has gone through painful and hurtful relationships to the point of giving up, indicating a deep emotional experience with heartbreak. It suggests an awareness that only when they are 'covered in wounds' can they fully believe and accept the end of a relationship.