This is an extremely distressing and potentially retraumatising event for you to experience. Those of us here who have experienced an unethical ending to our therapy understand how devastating this can be. It's heartbreaking.

Be clear about one thing - he did not terminate because there is something faulty with you. Your anger, needs, attachment, all of you has a place in therapy and therapy is precisely the place where you should be able to explore these aspects of yourself. He has ended the therapy because of his shortcomings. What you describe is unethical and harmful, that lies with him.

My therapy ended abruptly and unethically two years ago. I am still processing it and am now on my second therapist since the ending. It's hard. It does become less painful, as impossible as that might feel for you now.