I agree with Accuray, you should not have left the house. Personally, I would contact the therapist and make another appt. At that appt I would suggest that you agree to move back in.
Further, I would agree with your W that she needs to move out. You can suggest that she may want to consider finding a job first but if she wants to leave, then I would let her.
May i ask what state you live in?
Keep posting.
"The difficulties of Life are intended to make us BETTER,not bitter". "Fear is a prison, where you are the jailer. FREE YOURSELF!" "Life is usually all about how you handle Plan B." - Jack3Beans