First, I am glad that your therapist was professional enough to terminate the therapeutic relationship. This is very unfortunate (and a great loss for you, I imagine) since you had such wonderful rapport and working relationship PRIOR to the incident.

In terms of "is it possible?" Well, technically yes, it would be up to your ex-therapist and yourself. Is it ethical? This is another question and the answer is "no". I know, for example, than in the state of California psychologists are forbidden, under any circumstances to have sexual relationships with former clients for at least two years (not only would they lose their license, but there would be criminal charges). After the two years, the therapist is also ethically/criminally liable, except for under the most extreme/unusual of circumstances. A complaint could still be filled and the board would take into account services rendered (e.g. a one time intake is different than years of therapy), patient presenting problems, etc., etc.

So to answer your question, it is possible - however, it would be unethical (and possibly illegal depending on your state of residence).

I hope your therapist gave you a referral to another therapist who might help you process these events (your new therapist would NOT be able to file a complaint against your ex-therapist UNLESS you gave the new therapist permission. Client privacy trumps ethical complaints).