Good luck to all...I'll keep you guys posted on my sitch, but I'm certain it's headed toward the big D.
Asher, you never know what your future will bring. Many, many marriages (including mine) have survived these kinds of tough times -- things that SWORE would break you, and yet they didn't. Even people that DIVORCE -- about 20% of them -- remarry, usually reporting that the new marriage is healthier and happier than ever.
Just treat your husband with civility and grace during this period; it will serve you well should you two decide to try and reconcile.
Remember, "letting go" doesn't have to mean "giving up."