A few months ago I was out with my boyfriend, his housemate (who he also works with) and some of our friends. His housemate was talking about this girl that had just started at his and my boyfriend's workplace, and someone asked if she was good-looking.
My boyfriend then said "oh yeah, I'd definitely **** her". I was upset by this comment and the next day we had a bit of an argument about it as I felt it was inappropriate to say that, especially when I was stood right next to me.
Anyway, my boyfriend and his housemate started getting quite friendly with this girl at their work, they would often go out drinking together, she would go round their house a lot and I caught my boyfriend out lying about it. He sent me a text saying "you left your bottle of wine here last night" and I was like, what? & he replied saying it was for one of his male friends. I then go on Facebook and see a comment on his wall from her saying, thanks for having me round last night, can you bring my wine to work later. So I knew it was her, this caused another argument as I was upset he had lied to me.
Another time, she had gone to his house drunk (which he didn't tell me she was there) and the next day I saw a message flash up on his phone from her saying "sorry for being so drunk and getting my vagina out at your house last night", I was really really upset this time as I think that is way out of line for her to be doing that.
They were all out again last night and it's all getting on top of me now, I hate him hanging around with her after the comment he made and also the text I saw from her about her getting her vagina out.
Am I being unreasonable? I would never, ever stop him having female friends, he's friends with three girls that he went to school with and I have never had a problem with this or told him to stop speaking to them. But this whole thing with this other girl makes me very upset and I'm going to be honest, I feel threatened by her.
What do I do? If I am being an insecure nutter, PLEASE be blunt and tell me, I have no idea if I'm justified in feeling like this