Wow, the interaction as you describe it sounds pretty shocking. I can understand how hurt you felt. Not just that but the scheduling change, too!

Is it possible, though, that there were aspects of this interaction that were more positive that you're somehow not seeing? Did she say something like was described in a post above, that you could make this choice but that she wishes and hopes you will not? I know that when I am in a very dark mood, everything gets filtered through that dark lens, and I tend to look for the worst and think the worst in everything.

I mean, you say you don't know why you should keep going back. Is there some part of you that feels that she really cares for you, even though the dark mood can only focus on the feeling that she hates you?

Did she explain the schedule change? Again, you seem to think it's evidence that she's had it with you, but maybe there is a different explanation.

I don't know how long you have been seeing this therapist or what your relationship is like. But if you do go back to her, I hope you would be able to talk about all of these feelings, about your feeling hurt by your response, and feeling like she hates you. And see what she says. It may be that this therapist does not have the tools to help you and that someone else would be a better match.