Physical intamacy

This is he area I'm having most trouble with at this time. D-day was almost 2 years ago. I still don't want to be physically intamate with my husband. We have but very rarely! All I can think about or see in my mind is him with his AP. That his hands were all over her. That he broke our wedding vows. That he gave what was mine to another. Now I want nothing to do with him in that manner. Our relationship has healed greatly. We enjoy one another and now have a better marriage than before except for that one aspect. I know that it's not healthy for us but I can't seem to get around it. Any suggestions? It's to the point that if we are physically intamate than I take a shower after and end up very depressed for the next several hours. It actually makes me nausious even thinking about it right now.