<human>: Condense the text into a few key points

My boyfriend [M,24] and I [F,21] met back around spring of this year and started officially dating in April. He'd only broken up with his girlfriend of one year a couple months before in the winter, and I knew he still talked to her once in a while but I didn't know to what extent. This past spring & summer as we became closer I realized that she was still considered one of his friends, which was alright at first, but I soon realized it wasn't just a once-a-month thing.

 He has a large group of close-knit friends and when they started dating they became good friends with her as well. Even after the breakup she remained good friends with all of them, so whenever he hangs out with them there's a 99% she's there as well. She's a constant in his life, and all of his friends absolutely love her. She's apart of their inner circle, and it's really obvious I haven't been accepted into it yet. 

On top of that she still talks to his family and (in all honesty) she is much more attractive than I am. I feel inadequate knowing she's still around so much and that the people he's close to seem to like her much more too. I'm ridiculously jealous of her and disgusted with myself for it, but I can't help it. 

And I feel like these feelings of falling short to her are going to cause big problems sooner or later. They're already causing some smaller issues. So I want to stop them as soon as possible.

 Any help Reddit for a downtrodden, jealous girlfriend? :(
<bot>: My boyfriend has an ex-girlfriend who's still involved in his life, beloved by his friends and family & I feel like I just can't compete. How can I beat down this jealousy I have before it starts ruining our relationship?