It's funny how getting on the computer and looking up attorneys and printing out forms for divorce papers make a man curious.
That would a textbook example of dropping the rope, methinks.
Once you stopped fighting it, he may start to reconsider his position. Don't fall into the trap of defending your actions. Just keep doing what you are doing.
If he wants to see if things can work, then get yourself a marriage counselor. You might also look into a Retrouvaille weekend (http://helpourmarriage.org/) or some other kind of marriage recovery program.
Me: 44, Wife: 39 M: 17 years T: 20 years Bomb on 08/25/09 1/13/10: MC started 1/28/10, 2/8/10: More bombs 8/28/10: Wife moved out No talk of D, no movement