友情比爱情更伤人
[yŏu qíng bĭ ài qíng gèng shāng rén]
The nickname implies that friendship can be more hurtful than love, which may come from the understanding of interpersonal relationship in Chinese culture. In Chinese people's view, deep and long-established friendships have strong ties like kinship, so if they were broken by some reasons like misunderstandings or betrayals, this will bring deeper pain than failed romance because one always holds a belief 'friend' should be reliable forever.