I also want to encourage you to go there and not be so afraid. Therapists are people. Somebody really loving taught me that nothing is forever, the good news being that that also goes for unpleasant things.

So, maybe she had an off-day and was not listening very well on this particular day. No reason to jump to conclusions about all the other sessions, how I recognize this tendency. And maybe she felt you were strong enough to discuss this issue and you disagree. You will figure it out together on monday. You have nothing to fear.