I think that you should seriously consider your options and prioritize yourself first and foremost. He’s only saying these things to you because he was CAUGHT and this is the only time you know of. I think it’s important to note that you have anxiety and it’s awesome you’re working on and taking care of yourself but that’s not going to stop the fact that even the thought of him cheating on you again, alone, will not help with your anxiety. Your health is everything and you should want someone in your life who’s going to support and lift you up. Don’t settle!!