AITAH for being upset with my girlfriends friend choices?

Hello reddit!

I (30M) and my girlfriend (24F) have been dating for a year and a half.

Admittedly, I am a pretty jealous person. She is aware, and is very good about dealing with it. I let her know I'm feeling jealous about something, she reassures me, I dont ever ask her to change her plans, I just let her know how im feeling. She never changes her plans, so there's no resent built there (I hope).

However, something that we fight about is her need to stay friends with people who are romantically interested.

Two examples.

1. She has a guy friend who previously asked her out two weeks after her ex broke up with her. Same guy friend admitted to her he was bummed out when she said she was dating me (a year after he asked her out).

2. Her brother said he knows someone who is interested in her, she said she was dating someone and her brother said "well hes interested in being friends" (he doesnt know she's in a relationship. Shes private about her romantic life with her family).

These are the types of people who stay friend zoned with someone until they "have an opening", and it irritates me like crazy. She says that's not what's happening, and we just always have a weird moment about it when it comes up.

Once again, I would never tell her who she can or can't be friends with, not my place. And she's 100% not someone who would be unfaithful. But i don't know how to feel.

AITAH for being upset about this?