<human>: Condense the text into a few key points

I am very insecure about myself and this makes me jealous fast. I try my best not to be but sometimes I just can't control it. He's my first boyfriend and I'm his 2nd serious relationship. He used to have this flirty image before we were together but he changed already. We've been together for 4 years now and he stopped being like that when we got together.

You may be wondering why I was specific by saying girl "friends". Well it's mostly because of an incident that happened 2 years ago. I went abroad for a little while for vacation and while I was away my boyfriend started telling me stories about how this friend of mine started showing interest in him and how she constantly flirted with him. One time she even had the nerve to tell him to break up with me so they can be together. Of course he said no. This just broke me more, it scared me because of the fact that I trusted this girl and I thought since she was my friend she would never do anything to hurt me. So now i have a hard time trusting my friends and I think my jealousy is making him feel bad because he doesn't know what to do to stop it. I really want to change for him. How do I stop getting jealous of my friends?
<bot>: I want to stop being jealous of my boyfriends friends. He feels bad when I get jealous and he doesn't know what to do. I know I'm just insecure and he's not the problem