I would be a bit confused and unnerved by this response too. If we're having a session -- phone or not -- I want my T to be on and ready, 100% in therapist mode, even if she is secretly wearing fuzzy slippers. I don't think it's petty at all to be upset by the ambivalence you are sensing. When this kind of thing has happened to me in therapy, I have often gotten a lot out of bringing it up (fixing a misunderstanding, seeing how I can misinterpret things, expressing anger or disappointment, etc.). Therapy is supposed to be the space where you can talk about anything. It shouldn't be about pleasing your T at the expense of you expressing your feelings.