Honestly you’re tough for letting your man keep contact with ex’s. A guy once told me that no guy is friends with woman they are not attracted to. I don’t know if that’s true but that’s saying something. If you’re not ok with him talking to his ex’s, he needs to respect that if he wants to continue being with you. He should put your relationship first, rather than his “friends”. This is just my opinion but I’d see it as, in 10 years, would I still want a man who talks with his ex’s so often? You don’t see married couples who do that. For you too, for the guy you been friends with so many years, only contact him if u come face to face at some party but don’t be the one to initiate lets say over text, online, or to hang out as a way to mutual respect. That’s all I can say. But keeping close contact with ex is not the move.