Hi Everyone! Thank you so much for putting my mind at ease a bit!
To answer your questions:
Unfortunately it was my bf who told me about this comment, and it actually followed other revelations apparently delivered by the therapist such as that I have borderline personality disorder (this was declared after only 3 meetings with my boyfriend, and zero meetings with me), and that I could never be happy with anyone else but my boyfriend!

So, ScrewedUpMe, unfortunately my bf has no issues with passing these things on.

@BlueBicycle my first impulse also was that there was no way a therapist could say something so wild and offensive based on so little. So I asked about the BPD diagnosis, as I really thought that was an odd one given he had never met me. The therapist said that his actual words were that 'some behaviors described were consistent with BPD'. Quite a different thing. Especially when I heard what the 'behaviors' were that I had apparently displayed!

I also asked the therapist after I posted this thread about the Hitler comment. His answer was:
"(boyfriend) simply described a conversation in which you were insulting him repeatedly and telling him to "shut-up" when he tried to defend himself, explain, etc. I believe I said something to the effect of "yes, sounds kind of dictatorial, even Hitlerian in terms of her tendency to try dominate you in the relationship."

Yes, over-the-top. Just my opinion at this point "

Although this is a wild mis-telling of the story, I still feel it is not an appropriate parallel. Telling someone to shut up, insulting and not listening is somewhat better than the persecution of the Jews! I informed him that I was offended and corrected the story, and he did actually apologize, so I do feel slightly vindicated there.

I guess I'm just finding things extra sensitive because I do feel like I am working so hard, but the only feedback I get from the bf is how awful everyone thinks I am (apparently his kids dislike how I treat him and supposedly everyone he speaks to has called me a gold digger at some point, neither of these things is even vaguely accurate). Why can't things just be simple?!

Thanks for all your responses though, what a lovely forum I have found!