I can't believe this came out of a therapist's mouth.

It feels non-recoverable to me, but at the same time I like that you are getting in touch with your anger. It took me several years to admit I was sexually assaulted, at which point I was able to redirect the anger away from me toward the perpetrator and other non-believers. I would attend the next session and continue to express your anger, then you can decide if you want to stay. Don't apologize for it.