Hi Evy, I'm so sorry for your troubles. I hope you will get more experienced people responding regarding your situation, but as far as the money goes, do not go down into the pit with him. Take out what you need to keep the show on the road, rent, food, power, car. If there's any left then divide it in half. He will drink his away but you get yours for what you need.
I wouldn't bother doling it out daily if it were me, but you know best in your circumstances.