How should you feel about your girlfriend guyfriends?

Me and my girlfriend been dating for 2 months now and I really love her and enjoy everything about her but she kind of but too much have a pretty good amount of guyfriends...Like she has one guyfriend that she says is her bestfriend out of her guyfriends and she sees him as a brother...they went to McDonald's and hungout for a lil he has a gf but I kind of feel kind of jealous because he texted her one night saying we can have sex can't we? And she told me about it and told him that no because she has a boyfriend and he has a gf and he shouldn't even be thinking about that...and this other guyfriend she has she doesn't hang with him or anything I guess they text every once and awhile but she said he only wanted her for sex and she told me she doesn't talk to him much anymore and he's a friend...then today me and her went to the mall togheter and she saw a guyfrind there and ran from me to him and talked to him and gave him a hug...should I feel a lil jealous about her guyfriends? Or what? I'm not really jealous because I trust her and everything but how would yall feel about this?