<human>: Can you condense the text into three sentences or less?

My girlfriend and I have been going out for a few weeks now after knowing each other for 5 months.

So I had an interesting situation with her tonight. There wasn't much going on tonight and I have work early in the morning so I wasn't going to do much. 

So I told my girlfriend this and she was kind of disappointed because she wanted to go out and have fun. So she decided to hit up my one friend to see what he was doing tonight. The thing is my one friend likes her, and I met her through him at a party. He has always tried to take her out when I was talking to my girlfriend at the time, and I kind of lost trust in him. So I didn't feel like I was too at fault for not being comfortable with this. She is that bored she will hit him up just to get out?

The thing is I don't want to overreact to something that isn't a big deal. Would it be weird if my girlfriend would hang out with my friends even if i'm not around? I don't think she has too many friends honestly. I think her past group of friends went down a poor path, so she separated from them. She only has one really good friend, who has been away working at a co-op. 

I want my girlfriend to go out and have fun and enjoy herself, it's just I find it weird she would want to hang out with my friends even without me. My friends who have had girlfriends in the past never did this, but they also had their own friends to be with. Maybe she is just bored all the time and hates sitting around? 

Also I trust her for the most part. She can be a flirt when she is drunk though. I just don't trust my one friend within the group.

How should I handle this situation? Am I feeling uncomfortable for now reason? Has anyone else been in a similar situation? Thanks in advance
<bot>: Am I wrong to not feel comfortable with my girlfriend wanting to hang out with my friends even when I'm not around?