你是我的甜奶茶我是你的苦咖啡
[nĭ shì wŏ de tián năi chá wŏ shì nĭ de kŭ kā fēi]
This username uses drinks to symbolize a relationship, expressing a complementary contrast between two persons: 'sweet' versus 'bitter', showing the interdependence in love or close connections.