doesn't seem to me she's moving out. When my H moved out, he stormed out and wouldn't even be in the same room with me for over a month. Let alone ML? Please. She's had a change of heart. She's not going through with it.
So you either wait it out and watch her NOT LEAVE or you CONFRONT and say basically "I don't want to feel mind-f***ed any more." If you are leaving, I want a date. IF you are not, do not bring it up again."
Seems she was just trying to get a reaction out of you.