I think the first part of the dialogue went really well, all things considered. I'm sorry the second part of the dialogue tanked like it did.
I read the last email to her twice. The first time I read with what I imagined to be your voice with a very calm, non-angry tone. It didn't sound half bad. Then, I read it again with an imagined elevated voice with an angry tone. I got a different take in reading it both times. With email, you can't always detect the tone.
It sounds to me like she read the email with an angry tone. In her irrational state of mind, she lashed out.
I think there's a possibility she was testing you, to see what version of Telemark she was going to get.
Which version of Telemark did you show her with the last email? Did all of that need to be said? What parts of that did she already know? More importantly, how did you feel about it? Better or worse?
Don't get me wrong. IMO, she deserves everything and more SS24 can dish out. She deserves everything you gave her, too. What she is doing is very, very wrong. It's extremely jacked up. She will reap what she sows.