I think it is pretty normal for this to happen, especially for a woman who doesn't have a stable relationship in her life. Coming from someone who spent the majority of my life without any guys showing romantic interest, it can be pretty exciting when someone finally dates you. It gets very easy to pass up a night with friends to go out with your boyfriend, and I know that I'm guilty of doing that a lot. Once my boyfriend and I had been dating for a while though, I realized I didn't have a lot of friends and I realized just how badly I needed them. I think the best advice I can give you is to be honest with your friends and tell them that it's not cool for them to ignore you for their boyfriend. It may be hard for them to hear, but try to just be as honest as possible without getting angry. Don't make them feel like they're being attacked, or they'll probably just get defensive. Make sure they know how important their friendship is to you, and how hurtful it is to be pushed to the side. A lot of times, they may not even realize they're doing it. That's the best advice I've got, anyways.