就让我们相互亏欠
[jiù ràng wŏ men xiāng hù kuī qiàn]
The idea behind is a sort of ironic romance: 'Let's Owe Each Other'. In this context, there’s mutual indebtedness between people - not necessarily financial debt, but emotional ties that bind each individual closely. It’s often used when talking about giving too much in a relationship and hoping for a repayment through love, care or attention