She sometimes comes across as irritable and impatient, or anxious about me or my life in a way where her worry translates to being domineering and a debbie downer. At times her emotions lead to her saying things in a somewhat unkind or dismissive way. When she is dismissive and I have addressed her lack of comprehension of how difficult a situation is, she has usually been receptive and shown more understanding in the future. I'm not sure I would call her mean at these times, because to me that insinuates a desire on her part to wound me and I think there are more accurate words to describe how she is acting (irritated, impatient, domineering) and why she is doing it. That doesn't necessarily mean her behavior is better than if I considered it mean, however. There's only one time I can think of where I felt she was sort of cruel, whether intentionally or not.

As a few other people have mentioned, your therapist's comment doesn't strike me as mean. It does sound like she was preoccupied with her own concerns and allowed that to seep into your session. I do agree with your conclusion that she shouldn't have been working if she felt so bad it negatively affected her interactions with you.