So if being fired from therapy is fear of rejection, it's really interesting that you act like a "bad person" rather than what might be my response, which is to be all goody-two-shoes. Is this because you can then blame the "reason" for being fired on making no progress/following no suggestions of the therapist?

My therapist alway seems to be rather surprise when I follow a specific suggestion, which doesn't happen often. He suggested a supplement for insomnia (L-theamine) which, turned out. to be helpful to me and I told him. But I'm not sure he would fire me if I never took a suggestion, it is so little a part of my therapy it wouldn't make sense.

But even if I was in a situation where I was struggling with some things over and over again, which is often a function of severe depression and my thinking was stuck and inflexible, I still don't think he would fire me over this.

I do think the issue is less about being worried about termination and more about other dynamics in your world. Does this happen or did this happen before with somebody else? Cooperation (rather than subjugation) isn't required for human relationships, but it would be hard to be in an intimate relationship with someone who doesn't consider what the other person wants and does the opposite for the sake of it, or who otherwise pushes the other person away.

It's good you flagged the issue in email; however, raising it in session is probably important too, as in something as simple as "I'd like to talk about what I wrote in my email."