What if you went radio silent with her, except for kid-related stuff?
I mean NO communication. Read up on 'going dark'.
If she's communicating with you, she's trying to pull you back in, to keep you as a plan B. At least it's happened to others, including myself. It was all a red herring... she made her decision, and wasn't going to let plan B moving on from stopping her.
Even if the affair is over, she will need time to realize her actions have consequences, as well as going through withdrawl from him, which could take months.
I know you want hours or days, not weeks or months. But it will take that long.
Without her complete willingness to do counseling, even on her own, you have nothing I'm afraid.
The biggest challenge of you life (quite possibly) lays in front of you. Going it alone for a while. Let her stew and agonize while you figure you yourself. Your rollercoaster will continue - so exercise, get rest, eat right, and spend time with your kids if you have any.
Many of us have gone through what you are going through. Mowgli, me, Jeep, all good peeps who have seen the bad movie play out over these forums time and time again. Trust Sandi's advice - she is the matriarch of these forums.
Keep posting - it will help. We're here for you.
M46, EXWW46 M15 T17 D20, S19, D13 M - Addiction since 1998 W EA/PA #1 2013/2014 W EA #2 June 2015... BD 1 Big D talk 9/15 BD 2 - EA/PA disc 10/30/15 Served D 1/22/16 Divorced 5/25/16 (yes, that fast!)