you need to get all your facts about you.
go to a free advice session with a solicitor and specifically ask him about the house and that situation.
whether you can force hhi to leave and pay the ortgage 0 or whether you ahve to sell up
next get money - tell hi you have spent more on shopping than you did
sneek to the cash achine and draw a tenner
anything
then get all your iportant docuents together
bills in your joint names, birth certificas, passports etc. and photographs. keep them in a safe place.
then whilst he is at work.... the suitcases that are on top of the wardrobe or wherever they are gathering dust...stick some things in that wont be missed, some clothes, those documents, stuff for the kids, like gaes consoles, jewellery etc. just in case you have to go at a minutes notice.
you must divorce him and put the house on the market.
ring womens aid
go to the cab