Sorry you are going through this but I am confused by what happened. Did you cause the termination or did your therapist? Were you planning on ending it?
A few years ago my therapist terminated with me in a very unprofessional manner and it was really tough and I went through a great deal.
If you were the one who decided to terminate why would therapist call you? Also, have you tried to call her and set up an appointment to figure this out?