Ok sad let me ask you a question because I've just read the entire post and I am a little confused.
What lead to the break down?
Give a little more info because I think I caught that you said you have been distant from him. Ignoring him doing your own thing or not paying any attention to him. I am correct?
You say you are DBing? What are you doing? What are your 180?
Take a breathe and be calm. I am sorry you have not gotten much guidance here and I don't know what help I will be but I will at least stay with you and see if we can at least organize your thoughts.
DBing is not just following the book to a letter even if what you are doing is not working.
If your husband craves contact or affection and you "act as if" then that might not work. If he feels you are cold and distant and you get GAL and ignore him aren't you just reinforcing what he thinks? A 180 is about doing something different. What are you doing different?