First, off, I must agree. Generally you do not sponsor or work with someone of the opposite sex. Not to scare you, but there are many women in the program looking for men. (Who would want an addict, but......) It's commonly referred to as "13th stepping". So, it is NOT your problem. You have every right to set up boundaries.
On the other side of things, 1st year of sobriety was tough with my 1st husband. he did spend more time at meetings than at home. But with MEN!!!!
If he intends to stay in this relationship I would sit down & try to lay down some ground rules. Or things that you can both live with. My ex & I did it when he came home & it was a good thing to do.
I don't know why he still isn't contributing to the household. The is one of the 1st things he'd learn in the program. Take responsibility.
Lynne