KC... I think he has said all he wants to say. There is no going back for him and he doesn’t see being with you in his future. He didn’t say that on a whim. He’s not angry anymore but he is done. You need to accept it and move on...for your own sake.
Re: him not mentioning OW to you. My XH NEVER mentioned OW to me. Even now that we’ve been divorced for almost a year and they are engaged, he rarely mentions her. I think that is for a couple of reasons. The first is that XH and I only really communicate about our kids. The second is that he knows, deep down inside, that cheating on me and ending our marriage the way he did was a d!ck thing to do and he doesn’t want to remind me of it and risk bringing up any bad feelings between us and setting us back.
Time heals if you let it KC. I was despondent when my H left. Couldn’t eat or sleep. Didn’t think I would ever, ever get past it let alone open up my heart to anyone else. I was wrong on both counts. Don’t be afraid to drop the rope and move forward. There is great relief in letting go and moving forward. You can be happy again. I promise. (((HUGS)))