If you think you and your H still have a chance, look into a Retrouvaille weekend. PonyGirl and I both have gone. I had great results and am now happily married to the same old guy. I know PonyGirl also thought it was a great weekend, but unfortunately, it did not bring her husband back to her. You can read Limbo and EdieMarie's threads also, they both went this past weekend. there's more info on their website with dates and locations, http://www.retrouvaille.org. Both my husband and I say that the retrouvaille weekend was the best spent 2 days of our lives. I really think it could be the turning point that you need right now.
