谢谢闺蜜让我了解了小三
[xiè xiè guī mì ràng wŏ le jiĕ le xiăo sān]
'Thanks to My Best Friend for Making Me Understand the Mistress'. In this context, it reflects personal growth derived from negative experiences such as discovering infidelity in a friend’s relationship. The nickname suggests the individual has learned about human nature or the consequences of betrayal in friendships and relationships.