Shouldn't I be able to dance with my friend's gay guy friend without my boyfriend getting upset?

I've been with my boyfriend for a little over two years. We had a month long break about a year ago which was a great thing for us because we both grew and learned about ourselves. Other than that, we've been very committed. On my 19th birthday, about a month ago, I went out with friends and he said he didn't want me dancing with any guys. Obviously, I was glad to oblige and everything went on happy as usual. The other night I went out with my girlfriends to let loose after a stressful week and I noticed that he was there too (I was slightly irritated with him before but it wasn't a big deal). So my girlfriend says that her gay guy friend (whom I had met before) is coming out to the event as well. So we all end up dancing together and I ended up using him as a shield/ "distraction" for my friend and I to get away from two guys who were hitting on us. In order to say something to him (like hey, let's dance away from these guys) I had to get close to his ear because it was SO loud and we had all been drinking. My boyfriend apparently saw me dancing with a guy, flipped out, scared the **** out of our mutual friends he was sitting with, and apparently called me a as well. I talked to him briefly, reured him that I love him, told him the guy was gay, and asked him to calm down (he was drunk as well I think). So I stopped dancing with the gay guy and just had a good time with some other friends. Anywho, the next day I figured he had cooled down and that I should just talk to him about it again.... WRONG. He broke up with me when I called him! He says that I betrayed his trust but I have NEVER done anything that could remotely be considered betrayal except for what I mentioned before. So yes, I did dance with a "guy" but honestly, he is a female in my opinion. That's just how we see him, he's not even as touchy as my girlfriends! If my boyfriend met him he would probably agree. He says it's "the principle" and I can understand why he's upset. I don't agree, but I understand. However, I do not think a two year relationship should be flushed because of a miscommunication. Once I knew it was bothering him I stopped out of respect. Don't I deserve the same respect? What I mean is, now that he's ignoring me and refusing to talk about it, don't I deserve a chance to tell him my side? Also, I know this is a bad sign for our relationship (he has trust issues because he was cheated on in previous relationships), but isn't this one of those things you should just work through, especially after two years?