I too would be one of those who would love to have OM just fade out into the blue but for some of us it just doesn't work that way. I feel bad for Affairees (new word) whose H's cannot get over the A. They don't know how lucky they are in a way.
GC, I feel for you when your H says those mean words. Don't take the following words as advise, I just want to say it. Maybe he'd think you're serious if you just disappear for a day or two and tell him to call you when he's ready to trust you. We're on different ends of the rope here so it's really difficult to say what if any will convince your H of how sorry you are.