Don't do it!! It's a boat he needs to steer. When/if my H brings up divorce I will tell him to do what he has to do. I will not pay for it and I will not participate in filing jointly but I also will not stand in his way by contesting.
DO NOT do this work unless a divorce is what you want.
IMHO anyway.....
me 45 H 46 T 5 M 2.5 BD Sept 6 2011 OW Sept 8 2011 Threw him out Sept 8 2011