Hey buddy, I feel you. My heads still spinning from the past four months of back and forth threats then remorse from my wife. I called her bluff a few days ago, told her I wanted to essentially time share the house and kids but otherwise live as roommates at most if she refused to move out. Now she's finally come clean with more of the emotional affair and, I think (hope) wants to work on things. I'll let you know if we're really able to reconcile without moving out.
Like you, I feel stuck and trapped so often. It's so hard to detach emotionally while still trying to keep the door ajar for the wayward spouse.
Good luck to you sir.
Me: 43 She: 43 Married 14 Together 20 D7 S6 Separation bomb Dec 2017 Reconciled 3 weeks later Jan 2018 Second separation bomb April 2018