My Boyfriend has this friend on ps4and it makes me livid?

My boyfriend has a guy best friend he plays with and I get that but he has a girlfriend that playes with him to and she plays with him when her boyfriend isn't on, but they play like from 12 to 5 in the morning. I'm pretty nice so I tried to be friends with her and I get she's shy and doesn't want to be friends with girls bc guys are easier i get that but I'm trying to be friendly, I have an issue only bc 1. She doesn't talk to me at all 2. She can talk quite well with my boyfriend but not me. 3. He defended her once and I got pissed, and we ended up fighting but he said there's nothing going on with me and an online bitch that I don't know. And 4. I've been his gaming buddy wayyyyy before us dating and it makes me mad bc she might end up like me. Plus when I wanna play a game I kinda wanna be on the same level as eachother or kinda close we aren't him and her are. It just makes me livid help plus I don't want to sound insain which it makes me sound like it.

Updates
+1 y
What do I do with this "friend"? Ignor it for now, say something again like I don't know do I need to be worried or am I just over reacting
My Boyfriend has this friend on ps4and it makes me livid?
Post Opinion