<human>: My boyfriend, "Dan", and I have been dating for 2 months now. He is my first exclusive relationship, I am his third. Last night while we were watching TV I was texting a male friend from school about midterms and a class project and my manager about work. Dan started acting weird and asking questions about the boy I was texting, and complaining about me using my phone because it's rude.  Later when I responded to a text he let out, "please don't cheat on me."

I was pretty shocked because being unfaithful to him is the last thing I would do, the dynamic of our relationship is very caring and giving. I reassured that I wouldn't hurt him like that. I said it was important to me that he trusts me and doesn't think I am the type of person who could betray someone they care about. He responded that he doesn't trust me, he doesn't trust anyone so I shouldn't take it personally, and I am guilty until proven innocent because girls he thought cared about him have cheated on him before. He said that he would always hate my guy friends but he wouldn't tell me about it if it upset me. I was very hurt by this reveal.

It was difficult for us to find common ground on our opinions of trust and friendships with the opposite sex. I have a lot of guy friends who I don't have romantic feelings for, although a few of them have made moves on me (which I always reject). I understand feeling jealous occasionally and I'm glad he is willing to talk to me, but I'm not going to give up my friends because he doesn't believe that I will be faithful to him (not that he asked me to do that, just said that me talking to boys makes him uncomfortable and he doesn't want me texting them when he's around). Eventually he said he would try to learn to trust me, but he doesn't know how. How can I support him with this? How can he build his trust in me?

Can you give me a shortened version of the text?
<bot>: My boyfriend's previous girlfriends cheated on him, and now he doesn't trust me to have male friends. How can he learn to trust again, and how can I support him?