I'm sorry you're having such a difficult time with this. My advice to you would remain the same: you need counseling from someone who specializes in infidelity. Your strong, visceral reaction to your husband's affair, and the need you will BOTH have to get thru your roles in it, go beyond a telephone DB coach, in my opinion.
Or perhaps Dottie does specialize in that area, I don't know. I think the DB coaching can help YOU, individually, and I do think you need that. But I think an MC who specializes in issues of adultery would be the way to go.