In another situation Vegeta would be a pain and question just what was her job; telling herself to stop, telling him to stop, she wasn't being very clear. However that was not right for how she currently was. He's also certainly aware just how loud she was getting, not that that was unusual with her...

"We are not having this discussion here or now while you're drunk." There was no point to this, she would either keep going until she got her way, or just cause some other problem if someone else stepped in to try and quiet her down or calm her. Aka, someone else will get slapped.