My first dday was in November of 2022. I moved out for a trial separation this past March, and told him I want a divorce in July, so it took me about 2.5 years to arrive at that decision, and we only started mediation last month.
By the time I moved out, stbx was desperate to save the marriage, but the changes he made were all temporary, as evidenced by his behavior since I asked for a divorce. He hasn't gone back to AP (as far as I know, but she's still married), but he went full bore into the self-indulgent behaviors that he briefly quit while trying to "win me back."
In the end, like crazyblindsided, I realized that I was never going to be okay with his cheating (nearly 3 years EA+PA with a coworker, and later disclosed an EA from 11 years ago with someone else), and especially with the trickle truths and outright lies after dday1. I was living each day wishing it was my last, and that's not a great way to live!
I gave R a fair shot for about 2 years, and maybe if he'd behaved differently from the start, we could've save the marriage, but maybe not. I'll never know, but in the end, I felt much the same as you - I didn't really love him like I used to, I didn't want him touching me, and I lost a lot of respect for him that he never regained.
From what I've heard, this is a fairly common journey for the BS. A lot of attempts at R fail in the 2-5 year range. Don't be too hard on yourself if this is where you arrive. He might try to guilt trip you about it (mine did!), but you don't need to accept any blame if you decide to leave him.