I've seen this happen on here (including myself) where when the LBS has moved on is when the WAS wakes up some. It is the "you want what you cant have" reflex.
I think you are on the right path. And I believe it would take years for both of you to heal, forgive and have any chance to rebuild a loving relationship. A one time betrayal is tough enough to reconcile from, but rebuilding with a habitual adulterer is nearly an impossible task.
