None of them do, Seaturtle. They all justify their sins.
My H's OW is 43 like him, a barfly, drinks a lot, not entirely ugly but definitely not as attractive as I am (not being stuck up, just honest) - and is definitely playing the innocent, I'm so sweet card. I know my H will wake up to her one day and be disgusted, I've seen him do it before. The last time with his EA he wondered what on earth he ever saw in her. She disgusted him.
Again, I don't worry about her at all, I mostly worry that my H can forgive himself. That is going to be the huge thing that keeps him upset. He will forgive, though, eventually. He's a very guilty person in general, never mind the MLC monster.