Ouch. I can certainly understand feeling upset about this.

The good thing is that this is an opportunity for you to assert yourself - to remind pdoc of what he said and to let him know just how serious a task it was for you to get the book knowing that you would be working on it together. Letting him know how you felt about his changed response is important as well.

Aside from that, you can also read parts of the book and raise key topics in your session, paying attention to what gets stirred up for you, is a way for you to be proactive about your treatment.

The most important thing, I've found, is not burying my feelings as it ultimately affects me - and then the relationship with whom I'm suppressing those feelings about. Addressing it almost always leads to some kind of gain.

Good luck.