Don't worry about financially supporting yourself if you end up separating/divorcing- he will need to support you for awhile at least since you have been a SAHM. Check with that lawyer!
But as for the current- you live with him, you have to ask him for money, he is throwing the A in your face, he is treating you like crap, this has been going on for 3 years?
Let us know what your DB coach says. If your 180s are making some changes in him, great but odds are they won't be enough to make him end the A. (I did 6 months straight of loving 180s and my WH (who is physically separated) still wants to D! So I am doing something different since obviously the advice I was given didn't work to get him back!)
The old hard line approach of you moving out or making him move out and then cutting down contact to just about the kids may be your next big move. You exposed You are making positive changes in yourself You are doing 180s of not making his coffee and doing his laundry. In your state, if you move out or he moves out can you be charged with abandonment?
Here is a question about the money--any chance you can use a joint credit card (or his) for expenses and just pay it off every month? then you can avoid "asking' him for money which is a form of abuse!!! think about all the ways he is exerting his power over you and being controlling- even if he wasn't that way before and isn't that way normally, he is that way currently!
me,34 exH,34 S,16 months S:3/31/09-left for OW started DBing 10/09 d final: sometime 10/10 current: http://www.divorcebusting.com/forums/ubbthreads.php?ubb=showflat&Number=2022856&page=1 met in 2004