Purple, I think your husband needs to understand that his behaviour (which is very wrong) has consequences, which he has to bear.
When you know what your legal rights and responsibilities are, you need a serious conversation (however difficult that might be). I suggest you tell him what you want, what you are prepared to accept and what your next steps will be.
Presumably you can end your marriage with/without ending your business? But if you do end your marriage, would you want to continue working with your husband?
The business may need to end too and your husband needs to realise that his behaviour has necessitated its demise.
Stay strong, get good advice quickly and then begin to take steps.
Good luck and let us know how things progress. ?