Anger doesn't need to be justified. Feelings are what they are, valid. That doesn't mean they may not shift over time, or change as we learn more about situations, but I'm sorry you felt judged, and I can see why you would.

Perhaps you can share your post with your therapist. I think it's great progress you would show her your anger, and I do not think she would want you to feel you needed to hide it again for fear of her reaction.