This is absolutely unethical behavior. If you are able, or if your friend might be able to help, I'd encourage you to find out if your T is a member of APA since you're in the US. Link Removed
The principles apply here too: Beneficence and Nonmaleficence and Fidelity and Responsibility.
These are the codes that your T's behavior completely goes against:
2.02 Providing Services in Emergencies
In emergencies, when psychologists provide services to individuals for whom other mental health services are not available and for which psychologists have not obtained the necessary training, psychologists may provide such services in order to ensure that services are not denied. The services are discontinued as soon as the emergency has ended or appropriate services are available. (My comment: You are clearly in an emergency, and your T claims to specialize in trauma. Unless you literally threatened her in some way, she is ethically obligated to get you into the care of another provider.)
3.04 Avoiding Harm
Psychologists take reasonable steps to avoid harming their clients/patients, students, supervisees, research participants, organizational clients and others with whom they work, and to minimize harm where it is foreseeable and unavoidable. (My comment: After returning from a treatment center, you are clearly at more risk, and the T has responsibility to avoid harming you during this time.)
3.09 Cooperation with Other Professionals
When indicated and professionally appropriate, psychologists cooperate with other professionals in order to serve their clients/patients effectively and appropriately. (My comment: your ex-T is supposed to cooperate with the other people that you are trying to see. She should also have the basic understanding of "WHEN" therapy begins--as that did not happen with you and the other provider, your ex-T should not have dropped you.)
3.12 Interruption of Psychological Services
Unless otherwise covered by contract, psychologists make reasonable efforts to plan for facilitating services in the event that psychological services are interrupted by factors such as the psychologist's illness, death, unavailability, relocation or retirement or by the client's/patient's relocation or financial limitations. (My comment: again, to bluntly end therapy like this (unless you posed a reasonable threat to her) is unethical.)
10.09 Interruption of Therapy
When entering into employment or contractual relationships, psychologists make reasonable efforts to provide for orderly and appropriate resolution of responsibility for client/patient care in the event that the employment or contractual relationship ends, with paramount consideration given to the welfare of the client/patient.
10.10 Terminating Therapy
(a) Psychologists terminate therapy when it becomes reasonably clear that the client/patient no longer needs the service, is not likely to benefit, or is being harmed by continued service. (My comment: Does not seem to apply to your situation)
(b) Psychologists may terminate therapy when threatened or otherwise endangered by the client/patient or another person with whom the client/patient has a relationship. (My comment: I doubt that you threatened or endangered your T.)
(c) Except where precluded by the actions of clients/patients or third-party payers, prior to termination psychologists provide pretermination counseling and suggest alternative service providers as appropriate.