You are not fighting back by determining to stay and fight on his territory.
You want to play mind games with him? For how long?
What is your definition of winning?
Because if you stay and play mindgames with your husband, your DC's will learn that that is what human relationships are all about and they will play them too, instead of having happy, loving, decent relationships.
Do you really want to fuck them up like that?
My definition of winning, is to know that my DC's are not having a sick, dysfunctional relationship being role modelled to them. Your definition of winning is apparantly, to role model a sick, dysfunctional relationship to them.
He has already damaged you.