I understand that. I am amazed that she moved back in.
Look, you are one of the very few that actual followed this advise. Most of the guys move out and regret it. Did you go read wolfmans last few posts?? The times that the guys don't, their cheating wife's do move out on their own.
I have been divorced 10 years. Lots of time to watch this process play out over and over.
I assume you want your family intact. You are the only one that can save it. If that is what you want. Even then, it will take her wanting to also.
Fight the affair. Stand for your family. Do not be disrespected.
You can't just kick her out of the house. But you can claim your bedroom as yours. She cheated, she sleeps elsewhere.
"What is best for my kids is best for me" Amor Fati Link to quotes: https://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2879712