OK, so you are physically relatively unscathed, but that doesn't mean you will be next time.
This is your time to plan your departure. Up your hours at work, put as much money as you can into a private leaving fund. Listen at work for opportunities at other offices that will help you move away while keeping your job.
Make your plans, then when you are ready, tell him it is over and offer him the chance to buy you out of the house.
Ducks in a row time. Give yourself something to look forward to.