I don't think it is just a job to your T; these things happen in life. When your parents moved when you were a kid and you had to leave all your friends; when you did well in a grade with a particular teacher and then graduated to the next grade; when you changed jobs or a friend at work, or your best friend moved away; it is unfortunate that it has happened in a therapy relationship and you only have a weekend to process it.

I would ask your T if she is referring her clients to anyone else in particular; it is possible a "friend" of your T might be a good fit or, knowing you somewhat she might know another T who she thinks would be a good fit. My group T directed me to the T I finally saw for nearly 20 years and who was most helpful to me. I'd think about what you have gained in a year and a half in therapy with this T, go over it with her on Monday and see if you can come up with a rough idea of where you want to go from here. It will take time to grieve the loss of this relationship, it cannot just be swept under the rug for you or for your T! Think of ways to work on that while you also move forward and maintain your successes/gains.