rub something in
phrasal verb with rub verb [ I or T ] uk/rʌb/ us/rʌb/ -bb-
C2 触及（某人）的痛处;提及令（某人）尴尬的事情
to talk to someone about something that you know they want to forget because they feel bad about it
OK, I made a mistake - you don't have to rub it in. 好了，我是犯了错误——可你也没有必要哪壶不开提哪壶。