My boyfriend and I were supposed to go to a movie next Friday, but then he suddenly said he couldn't go anymore. I asked him what he was going to do instead, but he didn't want to tell me. Eventually, the girl, he apparently was going to sleep over with, told me because she's a good friend of mine and I asked her what her plans for the weekend were. My boyfriend, that girl and another female friend of theirs (so my boyfriend and two other girls) meet up quite often. Now, I don't mind him having other female friends, but he has said some weird things about my friend.He said he thinks she's a pretty girl, he said he would sleep with her and he said he sees potential in her and that maybe they could be together someday. He also talks about her pretty often. At the same time, he says that they are just friends, but I would never say such things about my male friends. The thing is, he often ignores me on social media and then goes talking to her. It just seems like he'd rather be with her than with me and him acting this way makes me feel like I'm completely worthless to him. When I went to talk to him about the sleepover, he said he didn't want me to know because I'd get grumpy about it. I reacted sad about it and I find it very stupid of myself to have reacted that way. Now he ignores me. I don't know what to do, because he doesn't want to talk to me anymore, but still talks to my friend. My question is, do I just agree with him going over there (I don't really have a choice, but imagine if) or tell him that I don't want it?