I am very sorry for what you're going through. I understand how terrible it must feel to hear your T say those words. It does sound like she wants you to terminate therapy with her but she is being awfully mean the way she's doing it.

I would suggest going ahead with the new T but I don't believe in lying. Maybe if you explain your situation again she will know the time is limited. I never wanted to leave my former T but it was the right decision. You'll attach to the new one too, and hopefully she'll be more competent than your current T. To be honest, my hunch is that your T will terminate you before long anyway so having a new T will be crucial. Again, I'm so sorry for your pain.