SUBREDDIT: r/relationships
TITLE: Can r/relationships tell me if I am being an idiot?
POST: My girlfriend and I are both 21. We have been dating for 2 years. We just decided to start having sex and it has been great. We have even decided that we dont need to have sex to keep our relationship exciting. I feel that we have connected on a much more emotional level and things are great.

Fast forward to yesterday, I am cramming for finals and she goes to the bars with friends from work. A mixture of guys and girls, mind you I have complete trust in my girlfriend. However, we were talking about it and I asked her if she danced with any guys and she said yeah. I causally asked her about it and she was semi grinding/dancing with multiple men. One of which I am somewhat friends with. It kind of bothered me but I didnt feel the need to argue about it, I just said that I am a little disappointed.

 What do you all expect from your significant other? Is this something that is acceptable?
TL;DR: 
serious girlfriend of 2 years doesnt think it is a big deal to dance with other men at bars and it bothers me.