I also don't think a confident T needs to lower themselves to sarcasm. Even when you have cognitive distortions, it can still take a gentle hand and lots of patience to get you to come around... that is therapy imo.

Three weeks isn't much time to become comfortable with a T, imo. Since she's already shown negative atributes, that might be adding in to your lack of like for her. I don't blame you. If you have a choice for a better fit of a T, then take someone else to help you.

(I think some therapists who don't truly understand the workings of CBT can become cynical and sarcastic. Sometimes they just do it to get your attention, or to give you what you are giving them...still, I don't agree with that approach and won't stand for it myself. )

You need someone who is consistent and patient. Good wishes