I just want you to know, that it is okay to put yourself first. No relationship is worth screwing your mental health over for. If he doesn’t budge, tell him you won’t either and end it at that. You simply have a boundary that is being crossed and he is ignoring it, defending against it, even.

It’s one thing to be insecure about him having female friends which clearly seems to not be the case here, but it is definitely not a good sign if he is willing to defend her against your very valid concern without even taking it into consideration.

I am sorry you went through all of that. Being cheated on is a very hard thing to emotionally recover from. I wish you the best, OP❤️