Chances are she will be getting the retainer from you. I bet she has her attny file a motion for immediate reimbursement of her legal fees. Of course you will not be doing that!
Get an attny ASAP and get a good one. You have all kinds of info about your W's attny, use it! Get to the courthouse and start researching what firms/attny's have whipped your W's attny in other cases (this is what I did!) then go retain the whippers Is your W stupid that she took you to her attny? My gosh!
Yes to getting your own account and paying the bills. Does she work? Sorry I did not read that far back. If she does not and you support her I would give her a super small "allowance" and you take care of the bills, shopping expenses and kids needs. Give her 5.00 week, lol! Be prepared to get hit with an emergency support motion.