Anned...all I can say is I am so sorry you had to hear all of this...but I wouldn't say all is lost even yet...my H pretty much told me the same thing anytime we spoke from Sep 04 to Feb 06...and yet by March he was "rethinking" things...thinking that "maybe...maybe"..."no hopes"...and here we are a bit over a year later and doing much better then we were when all this went down...
My H said many many times that he was just done...that he had tried tried and tried some more over the YEARS!( I didn't realize we had a problem that was taking years of his trying but okay)....
So while your H is believing right now that he is done...and maybe you need to go along and believe it maybe that in 6 mos, 9 mos, or more...that he won't be as done as he is now...