First off I agree w everyone else. You are doing great. Continue to do what is working.
IMO - She is looking for you to let her off the hook... So she can move on or start having deeper feelings for you.
I would respond like Pookie suggested. Help facilitate her inner journey.... She needs to figure out why she allowed herself to cheat... she is riddled with guilt which is a GOOD thing. It means she has a conscience. Unlike some spouses on here. "Just let her know that you need time to figure this out and will let her know when you are ready to discuss it..." This is keeping the CONTROL in your hands.
