Yes, when he decides to move out; you should have an agreement that outlines those things. Make sure that you follow through with that too; it's important that he is made aware of just what this will cost.
My W had all these grand ideas about moving out on her own. I think once I started hitting her with the reality of what it is going to cost and what I am willing to pay/not pay for; she seems to have backed off. She's still staying somewhere else at night; but all of her stuff is at the house and she acts like she has no plans on moving it anywhere.
Right now she comes and goes; but her all of her talk points to inner confusion. She really has no idea; just knows that she doesn't want to stay.
