Sexual exploitation—which I think this was—is a mind scramble whether or not it was consummated. Add to that the gaslighting. It requires a huge paradigm shift from seeing him as a professional there for your needs to an unhinged, undisciplined predator.
There’s are some resources atop the Romantic Feelings sub forum above this one, a website on the subject
http://www.survivingtherapistabuse.com
and these people you can contact by email
http://www.therapyabuse.org/
So sorry this happened.