小三把相约踩在脚下
[xiăo sān bă xiāng yuē căi zài jiăo xià]
'The third party tramples rendezvous underfoot' alludes to the situation of someone who intervenes and ruins the original romantic appointment of a couple. Here, the term 'small third party,' a widely used term in Chinese popular culture referring to a ‘third wheel’ or specifically to a mistress or lover breaking up a relationship, is not meant pejoratively, it might represent betrayal, jealousy, frustration over broken promises, and may also express the anger towards an affair interfering in the relationship.