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

My boyfriend and I have been dating for a little over a month. Today is his birthday, and a large group of his friends are coming into the city from the suburbs to celebrate with him. 

I am nervous about meeting his friends because his last serious girlfriend is still friends with his group of friends. She won't be coming to the gathering tonight, but I know she is a major part of the friends group still.

A little background on them. They broke up a year/year and a half ago. It was a serious relationship. They dated two years, but parted ways because he got cold feet about proposing. Fast foward to now...she is recently engaged, but before my boyfriend and I met she was still gunning for him despite being engaged. My boyfriend has not had contact with her since then, then we met and started dating and I trust that he is over her and fully invested in me.

I guess my concern is that I'm nervous about her still being involved with that friends group. I want them to like me and I don't like the feeling of being reported on back to her. Does anyone have any advice?
<bot>: Meeting my boyfriend's friends tonight. His ex stuck around his friends group after their break up, and while I know she won't be around tonight, I am nervous about it and want to make a good impression on the friends.