闺蜜赶上小三闺蜜你真棒
[guī mì găn shàng xiăo sān guī mì nĭ zhēn bàng]
This username is a bit sarcastic. It seems to express mixed emotions about a friend turning into a 'third party' or 'mistress' in a relationship, praising her for succeeding in that role. In China, this topic can sometimes be controversial or dramatic in social situations.