Code,

I've been here a few times and there's one thing I always see from the vets regarding cheating.

If you buddy up with your W while she is in an affair, she will lose respect for you. If she doesnt respect you, she can't love you.

You literally have to make her feel in her heart that she has lost you. Doing this takes lots of time because she knows you still want her.

If you dont have kids, I would go completely no contact until she can be transparent with you.