if she is abusing you, leave her, pack a bag and get the hell out, and for fucks sake call the damn cops! abuse is abuse it doesnt matter that its a woman doing the abuse, and it doesnt shame you any to have been a victim, you made efforts to fix her, and chose to go back to being abusive, she is NOT fixable. she violated her parole and needs to do time, as for her son, maybe she is at least in part why is isnt stable and needs help anyway, with her out of the picture he can get help.