He Doesnt Trust ME...

When me and my fiance were broken up, all of his friends would message me and flirt. One even offered to fly me to Arkansas. I told my fiance all about it when it happened. One of his friends even went to HIM and asked HIM for nude pictures of me while we were broken up. Once again if they said anything I told him. Well when we got back together he tells me "I don't want any of my friends I have left around you. I don't trust you around them" like what in the hell?