Your M as you know it is dead. She fired you from your job of being a husband. She is trying to diminish your role as a father. She is having an affair with another man.
She wishes you would move on not because she cares about you but because that would make her feel better about her own crap behaviour.
She finds you annoyingly unattractive because she does no longer respect you.
Give her what she wants. Let her go.
Don't become a doormat and let her walk over you, eating cake and dictating the terms.
Don't negotiate with a terrorist who blew up your family.
Lead.
Make a plan how YOU will live without her and don't dwell on how SHE is going to experience a life without you.
Get your ducks in a row. Make a plan how to move forward. What are your goals for financial, emotional, physical and spiritual health?
You need to lead with dignity and respect. That is not pussyfooting around the idea of possible reconciliation in the future. It is about what an attractive and confident Man does NOW. It's called "parallel paths".
Lead the way and your wife may follow. If not you will be light years ahead to find your future happiness. It's a win win situation.
Wishing that things will turn around is not a plan. Hope is not a plan. Doing nothing is prolonging limbo. Change the dynamic.
