Stacy - I think the previous posters have pretty much said it all- but in particular I agree with Mozza when he says you are on a harsh rollercoaster.
One thing I would also point out after reading your posts for quite a while......remember how sure you were that he and OW were living a blissfully happy life in a glamorous city? Well - it turns out that he wasn't so happy after all, right? And picking up and making a major move twice in the space of a year? That doesn't sound very good to me. Whatever he is going through - he is still going through it - don't let him drag you down.