Thanks, bluestar. After all the drama, I have to agree with you - I can't force them apart, he has to end it. Until he's willing to do that, I need to get my legal and financial ducks in a row and move on.
Funny, but the 180 has been pretty liberating for me was well. Once I stopped obsessing over THEM and I started pumping energy into ME and MY interests, it's like a weight has lifted. I still have setbacks of course, but now I've grown less concerned about saving my marriage and more concerned about making myself happy. I can't remember the last time I thought that without guilt! :-)