I agree that you need to find out your options, but whilst it may be necessary to leave you should avoid doing anything that will disadvantage you down the line. If you own the house your rights will be different from if your husband’s name is on the rent book, for instance.
Obviously your safety is paramount, so is there somewhere you can stay temporarily, without officially ‘leaving’? Ginny’s suggestion above that you see a lawyer first is a good one. Explore all your options without rushing into anything, but be sure to keep yourself safe. Good luck- this sort of thing is so easy to say on the Internet, and so much harder to do, specially in later life