Never walk away. DON'T leave the marital home, if it is such, even common law co-habitation. DON'T change the locks. DON'T stop communication. DON'T get a lawyer. If any of this is to happen, follow a calm, slow and steady course. Not knowing the details, if you feel you must do any of the above for personal safety reasons, that's a different story and you should do whatever is necessary to protect yourself.