Calystra - I was originally here in 2005 and became a "success" story too, only to return about a year and a half ago. I can't even figure out how to find my old posts and I think that might be a good thing. All it would do is make me fail more like a failure today.
My last two days have been the worst in quite some time, and I am reeling and dying inside, but I will tell you what I try to tell myself - you have put more work and effort into your marriage than virtually every "happily married" person you see. As much as it hurts, sometimes it just doesn't matter. But it doesn't lessen your efforts in any way.
I don't know anyone here, but to me so many of us seem like incredible people. The kind of people are spouses should be thrilled to be with, yet they choose not to. It makes no sense, but it is still the truth.
Be prepared for things to be twice as hard this time. They certainly have been for me.