From what you're describing, it doesn't seem to me that she's being dismissive. She doesn't say "hello" first. I don't interpret that as being dismissive. The other explanation is that you keep finding faults with this therapist who, by your own admission, is not particularly helpful and doesn't make you work on your goals. If she's so awful why not leave her? I understand you won't get another therapist but maybe it's better since you don't seem to connect with this particular therapist.