I think words may have run their course in this situation. Its time to act.
Do you own your house OIN? or do you rent? If you own it you may consider just getting a few brochures from realtors and leave them lying around. Or even pick up a few travel brochures.
If she asks about them you can say that you are considering selling the house after she moves out? Or that you were considering taking a trip once she moves out.
It would be counterintuitive to your current techniques and would show GALing. I don't know, just a thought.
