多谢你的绝情
[duō xiè nĭ de jué qíng]
This nickname conveys the sentiment of 'Thank you for being heartless.' It expresses a bittersweet or sarcastic thanks to someone for their cruel actions, possibly implying the pain that has been inflicted and also a sort of gratitude because it may lead the person to self-empowerment. In the background of Chinese dramas or romance, this could come from a scenario where love has turned into hatred.