I am not sure if your therapist is a LPC (licensed professional counselor) or a psychologist or a psychiatrist or a social worker. They all have different approaches and even those under the same umbrella have different theoretical orientations. Some maybe Rogerian, others psychoanalytical and others existential. BUT, they all have to adhere to a code of ethics. And based on what you have disclosed, it appears that your therapist has indeed violated a basic ethical code that straddles across all helping professions. Do not harm the client. If she/he felt that she/he could no longer work with you, they have an ethical duty to refer you to another therapist and explain why they no longer feel they can benefit you. Just calling and dumping you is WRONG. I would report them to whichever sanctioning and licensing office oversees them. It is NEVER about the therapist and their frustration level. That is very unprofessional.