Any advice?

So basically, I hang out with some friends every Wensday and I really am feeling resentful towards one. I really like hanging out with her, but for some reason she dosent like me I think? When we play any game online she immediately says she has to go, but when someone else plays with her she can stay. Its happened too often to be a coincidence, and like if I text her, there's not any reply. In the rare chance that she does reply, she drops out in the middle of a conversation.

I really hate it, and I honestly have no idea what to do. When I hung out with my friends tonight, she barley looked at me, let alone talked to me, and the only reaction I got was a small laugh on one of my jokes. No concerns for the fact that I was involved in a car accident a couple of days ago, (Not that I want sympathy or concern, but still.) and I don't know whether I did anything. Maybe I was texting her, or trying to hang out to often? Does anyone have any advice or anything?