Awful dream

Ugh.. I had a really awful dream. Not really a nighmare, except that it would be if it ever happened IRL.
I was with my boyfriend at some sort of party, I don't know what kind of party it was or why we had it but a lot of different people were there, even people with kids. His friends were there and my former best friend Josefin was there as well. There were also a bunch of other people that I've never seen before. Most of them looked like typical assholes, specially the girls. 
 
Here comes the worst part. But before I say it, I'd like you all to know that my boyfriend is one of the kindest and sweetest people I've ever met and according to his friends, I'm his first real girlfriend, so he doesn't have any ex's. 
 
However this one girl in this dream must've been out to hurt me for some reason because she told me to look out for him and that he had asked her previously, on that same day, if she wanted to have sex with him. I'm obviously hurt, because I never would've believed that he would do someting like that. But, being me, I decide not to believe it until I can talk to him about it. So I drag him out somewhere, I know that we went to different places trying to find a spot were we could be alone and that I kept shooing people away. 

I confront him (we talked about other stuff before but I can't remember what they were) and he doesn't deny it, which obviously makes me mad. But I'm also very attached to this guy so I don't really want to leave him. He managed to reason with me (also a conversation I don't remember how it goes) into hating the girl instead of him and we all, his friends and my friend decides to get some revenge on her. It's when we put this plan into action that I wake up. 
 
 
Dreaming stuff like this is awful.. specially if it's about someone you think you know pretty well. I guess it's a sort of fear of mine, but he has never shown anything that would suggest that he is anything like that. However my very shortterm boyfriend that I had before did. He even keeps saying that he thinks he's in love with more than one person at the time.. so maybe.. I'm accidentally combining them in my dreams. I don't want to do that.. I'm extremely happy with the one I've got now... D: