My boyfriend is really close with another girl?

Anonymous
I might be thinking too much into it cause he's been friends with (ill call her X) X since two years

The thing is whenever we're sitting together and X is with us he won't let her go anywhere (It kinda gets awkward when its just me and him because I stop talking so he's the only one talking so he's like we should sometimes keep a mutual friend with us to avoid it) but he grabs her arm and she keeps saying let go I'm gonna go now but he's like no you're not going anywhere your staying here or he steals her bag and keeps it with him because then she has to stay with us. Also once he was like "if X or jack (his best guy friend) ask me to come to school I will" and I was like what the hell am I not of any importance but he was like no if you ask me too ill obviously come. Then one time he wanted to get high and he was like OK I'm going with X (he asked me too but I was like nah I don't want to go today) so it was just gonna be her and him but she felt bad so she forced another guy friend of hers to come with them. The thing is he seems way to close to her like not in a friend way but as in he stands really close to her and if she's sitting and there's very little space on the side he won't mind sitting there so itll be like theyre sitting almost on top of eachother but X gets up cause she doesn't want me to feel uncomfortable also one time she was sitting on the stairs and I was about to sit next to her when my guy came up nudged me aside and sat next to her. I know X and she's all the time like he's changed so much after meeting you he really really likes you and is crazy about you and stuff. (he used to be a player before me) he's already told me several times he'll never hurt me and he really likes me and stuff Andd I know X is never gonna get together with him cause she herself doesn't believe in love or relationships so she's kind of a live fast die young type o girl. so I wanted to know your opinion on this is this all okay?
My boyfriend is really close with another girl?
3 Opinion