If that's the plan, is Nader nuts? He would have to give up any notion of having side whores (or anything that doesn't involve her for that matter) because Chins would be monitoring him 24/7. Remember, she rarely leaves the house. AND! he would be responsible for all the cooking and cleaning. Chins already complains that the luxury villa is too much for her to keep up. And what about Chins always insisting that she leaves the trap house when she does because she needs her space?
If he is only in it for the money he could keep up the arrangement they have now, and still have some breathing room, Could it be that he really does have feelings for the beast? OR! maybe she is the one taking the initiative and is trying to lure him into it.
Either way, we all know it's a pipe dream and she'll change her mind again tomorrow.
ETA: Could Peetz be any simpier? With all of the shit that Chins pulls on him, he still doesn't realize that having no friends at all is better than having one friend like her.