Boyfriends friend encouraged him to cheat

My boyfriend went for a night out with a friend of his. Which I encouraged because like he should have friends and go out and have fun.

Problem is I haven’t outright met this friend as he has been working in another country and they’ve just rekindled their friendship. Although he DOES knows about me.

Anyways apparently he tried to convince my boyfriend to cheat on me with an escort service and have them come to his house after the night out. I didn’t know till I saw the messages and apparently it didn’t happen. But I don’t know what to do now. I’m so uncomfortable with this friendship now.

I’ve already said to my boyfriend “I don’t know how comfortable I am with you hanging out with someone who clearly encourages you to cheat and isn’t respectful of our relationship.” He turned it around and was like “fine I just won’t have friends, I’d rather have no friends if it means not loosing you.” ... but I’m not saying don’t have friends, I just don’t understand how he can’t see why I might be uncomfortable with this one friend and why he takes it straight to saying he’ll give up all his friends. That’s not what I want or what I’m saying. I just wish he’d say “I understand why you feel that way”

I don’t know what to do :( how do I move past this? I do try talking to him about it but he’s not much of a talker