I’m sorry you are facing this situation b/c unfortunately only the cheater (at this point) can turn this around.
Unfortunately I had dday2 as my H was still cheating (after he supposedly "ended it" with the OW). Here’s where it gets interesting. Immediately after Dday 1 he starts the ILYBNILWY and he wants a D. After 25 years of a good marriage.
Yes I was blindsided. And I did not know about SI. So I have a great therapist who kept my sanity intact but I was making decisions on the fly.
I decided I needed to get my plan B together just in case.
Four months later and dday2 is when I found out why I kept hearing he wanted a D — even though things were improving I still heard it every 2-3 weeks. At least in dday2 I know WHY he wants a D — to be with the OW.
So I tell him this exactly - very calm and rational. "I am D you. I’m sorry it has come to this but I have nothing left to give to you or this marriage. You are free to go snd be with the other woman or anyone else you please".
And I left the room. It was NOT a discussion.
I stripped him of any power or decision making ability in my life or my kids’ lives. I told him to get out. He refused. I found him a place to go.
He saw a whole new side of me. He’s now begging me to Reconcile. But it’s too late. He did me wrong and in my mind there is no possibility of R. I have NO feelings for him. I don’t hate him. I don’t love him.
So I understand where you are right now. I had those same feelings.
The difference between my H and your W is on dday2 my H got his act together. He heard me say no R was possible but he never gave up. He made an effort every day to prove he changed.
Long story short after one year I finally stopped feeling like I was D him every day. We are now happily reconciled. Life is good.
But he changed. And those changes have been permanent. We are one of the lucky ones.
But the cheater has to make that commitment to the marriage, stop lying, stop making excuses etc.
Without the cheater making changes there is little chance of success.