You can separate from her. I separated from mine after 7 years. I moved it was a little different scenario. I survived though and you will also. It isn't healthy to stay tied to a therapist the rest of your life. Eventually you have to learn to live your life without them. Not saying you have to give up seeing her permanently but try seeing her less often and see how it goes. She cares about you yes but only within limits. That is what you got to accept. Her caring can only go so far. You can do this. They are not meant to stay in our lives forever unfortunately but again nobody really is. We even lose family members and friends over the years. Yes it is hard and it is sad but that is just the way it is.