Find a tough attorney tomorrow morning. Go to your bank tomorrow morning and take whatever actions you can to remove as much of the money as you can from his access. Some banks have toll free numbers that you can call 24 hours. Ask for a supervisor, someone who has dealt with spouses raiding the family accounts, and get the transfers done ASAP.
Take care of your interests, your family's interests, and feel just in doing so. He sounds out of control with addiction, and he is not acting rationally. Think about if your positions were reversed, and you were doing what he is. You would want him to stop you from squandering everything.
And take care, and be gentle with yourself. Come here often, post whatever and as much as you need. This is a caring, supportive group of people who really understand what you're up against and will help you look out for your and yours.
BothSidesNow