Hey... if it is helping you get and STAY sober... whatever it takes!! Seriously.
Maybe after some time has passed and you feel more secure in your sobriety, maybe follow a program of recovery that doesn't involve your family... I could see all sorts of dysfunctional and confusing behavior and feelings coming out of that arrangement....
I am sure that you have met some married couples in AA in your time spent around the rooms... the successful and happy couples are quick to say that they work their program completely independently... a lot of the couples I know of even attend separate meetings.
But for now, if that's what it takes... do it. Do you have a sponsor?