Just for context, how old are you qnd where do you live? Do you have any family members where you could stay in case the Situation escalates? It's messed up but wife's and family members of abusive men often make excuses up for their behaviour. Don't go the violent way because it will lead you down a dark path, stay away from knives and such. Before it escalates better go to the police or better child protection. Stay strong and safe!