<human>: Give me the gist of the text in a nutshell

My girlfriend has always had a lot of guy friends, but sometimes they clearly hit on her and she doesn't seem to mind, she even seems to enjoy it a lot of the times. When I talked about it with her she said she didn't notice it and now sometimes she let's me read parts of her chats and she notices it earlier now.

However, a week ago she went to a party without me and there was a guy there who was definitely interested in her. They talked a bit and she told him she had a boyfriend. After that they kept talking and danced a bit and later they hugged. A hug itself isn't that bad to me, but I really don't like that she does that with somone she knows who doesn't want to just be friends. Also, she gets annoyed if another girl so much as touches me so I don't understand why she thinks it's ok for her to hug other guys if she reacts like that.

I don't want to be the jealous boyfriend all the time but it makes me feel really bad everytime she let's other guys hit on her. Should I try to change her behaviour or should I try to care less?
<bot>: My girlfriend let's other guys hit on her and I feel bad about it everytime, meanwhile she is quite possesive of me.