I dunno... This raises some serious red flags for me. I'm trying to think of a circumstance under which it would be okay for your therapist to say that to you. I think even if your old T had abused you (most drastic example I can think of) it would not be up to new T to tell you what to think or feel (or force you to deal with her feelings about it!) rather she should be creating a space in which you get to explore how you feel about what happened and arrive at your own conclusions. Her anger shouldn't be your problem--that's between her and HER therapist. Your therapy should be about YOUR feelings.
All that said, DOES new T think old T abused you in some way?