There is only one purpose at a club despite what people claim, and that is to court the opposite gender. Girls may tell you they only go there to dance and have fun, but they are lying when they say they aren’t trying to court men or at least appease their egos. If they are only there to dance, then why are they wearing skin tight short dresses which accentuate their assets? Why are their faces plastered with makeup to give them the best appearance possible, and why are they donned with jewelry?
So if a man tells his girl not to go to the club and she goes anyway, there is only one reason for it. However, there is never an excuse to strike someone other than for the purpose of self defense.