That depends on what you want.

You know you crossed a boundary but won’t admit it to ‘save face’. If you want to save the relationship: come clean, start again with the clear intent-decision *not* to violate her boundaries or attempt to scare her. Also, speak up re your powerlessness or how the non-reciprocity of the relationship bothers you etc.

If her trust is gone and you keep evading or being defensive, do you really see a future to this relationship?

Therapy is not the same as a relationship with one’s dentist - there is less frequency, intensity or emotional implication. Some Ts are blank slates (nothing wrong with that as it is how they work). She won’t change her method of working, or at least, she doesn’t have to if she is not comfortable in doing so. Therefore, IF her style doesn’t suit you then why not interview other Ts who would be more forthcoming?

I don't think it is the knowing stuff that is 'bad' but what you are doing with this information. I find it scary and manipulative that you would want T “I wanted her to feel as scared and powerless as I did sitting on her couch”. She’s not out to hurt you. A T’s job is to try and help people mostly by delving into one’s inner workings. That’s why there will inevitably be some power imbalance. They are also not required to divulge anything about them. Why not be honest re you feeling powerless due to this unequal relationship (where one discloses and the other less so) or move on to someone who could accommodate you?

Open communication would be preferable to trying to bully or scare Ts. She might not be able to work (nor want to) with you under the present circumstances. I think she would even be justified in referring you out.