As a cheating husband, and now the victim of an affair I can both give advice on what your husband may be feeling and sympathize with you.
I STRONGLY suggest talking about the affair in as much detail as you can handle. My W just accepted my BS excuses after "ending" my A, and all that did was enable me to start the A up again after a few months. Just ask for the truth.

Sara is spot on about After The Affair, had I read it when asked I would have stayed faithful.