dally with someone
phrasal verb with dally verb [ I ] old-fashioned uk/ˈdæl.i/ us/ˈdæl.i/
(also UK dally with someone's affections)
玩弄…的感情,欺骗…的感情;与…调情
to be romantically or sexually involved with someone, usually for a short time, without really loving that person
It's cruel the way she just dallies with his affections. 她那样玩弄他的感情真是太残忍了。