I've never been married, so obviously I won't act like I have any idea what you're going through or how you should handle it, but I did read this article a while back about wanting it to just be over with so you can move on, thought it was pretty insightful.
http://www.huffingtonpost.com/david-..._b_852806.html
Too bad you don't live in one of the 7 states that allow you to sue for alienation of affection.