Well be ready for it. If they want out they will find something. Mine is moving into a little tiny apt from our dream house.
It sounds like in your case she is swinging back and forth looking for reactions from you. Testing the waters. I don't which would be better. The agony of them leaving is horrible but there is a part of me that thinks the only way for them to see the light is to move out and see how different may be from what they had envisioned. I'm praying for you.
M 33, W 30, SD 10, D 5, S 4
Made it through the WAW, living happily together now. And I am much wiser for it!