So I've been dating my girlfriend for about a year and a half now and things have been great, except for partying with her. Whenever she gets drunk, she gets emotional and starts to cry, which is ok, but it gets annoying at times

So I told her that next time I party, I want to go with just the boys. Just for one night without her.

So am I the asshole for wanting to party for one night with just my friends without her?