RANT! Advice?

So there’s this girl on my team and my boyfriend manages the team so he helps during our practice.  She has been a friend since we started playing and is in a relationship herself (her boyfriend does not go to our uni) and she told me a couple times how she feels weird when she sees me with my boyfriend bc hers isn’t there.. Some background information about her (brutally honest) is she loves attention from guys even though she has a boyfriend which at first honestly I didn’t judge her for because who doesn’t love attention? It always feels nice and is a confidence booster! Anyways recently they’ve had a class together and they talk more which i thought was great because one of my teammates and boyfriend get along? that’s great! But recently during practice I feel like she finds reasons to talk to him or be a little closer to him. Usually we split the field in half so the coach works with half of us and my boyfriend works with the other half. This teammate and I were with my coach but every time my boyfriend would say something funny on the other side she would look over to him and laugh or make a comment. He would not look at her though or sometimes acknowledge her. 

Furthermore, usually when practice ends she leaves in a hurry to go home and shower. Today was my boyfriend’s first day of staying till the end of my practice. Coincidently she stayed and stood kinda close to him on the deck. At the time he was giving instruction to me and the goalie. She stayed for a bit but when she noticed he didn't pay much attention to her she left. I don't believe the right word is jealous because i know she loves her boyfriend and mine loves me but I just don't like the fact that she might be “fishing” for attention from a taken guy.

I haven’t talked to him yet because he’s legit not doing anything wrong but I just want to know if I’m being crazy. I honestly think I am and its all in my head but it’s nice to rant about it and get it off my chest.. 😅 Anyways if you read up to hear thank you so much for listening and if you have any advice please please leave it. Would you feel weird about it too?