Found out 12 Hours ago. What now?

[LiM]

What is there to talk about? She's having an A. She either stops, expresses remorse and starts working to repair the damage she's done or there is nothing to talk about.
She seems to be curious about what is going on in your mind and frankly its none of her business. You need to show her that you are moving on and that you are not interested in talking about anything until she ends her waywardness. Words are meaningless at this point. Action is what matters; for both of you. You need to be making significant changes in your life regardless of what she is doing. So start doing those things; not to win her back but because that's what you know you need to do to be a better person. She will see those things and see that they are genuine. Until she is ready to do the same work, there is nothing to talk about.