I don't really know or understand the full story here. But I have to say it sounds very unlikely to me that a T recommending a book is a covert way of them calling you a liar. I can't see any link between those two things and I think most people would not.

If the T had really wanted to say that you were a liar, don't you think he could have just said it using words?

Anyway I'm really glad you found a female T who was sympathetic and helpful.