Since I don't really care if she sees this, here are some sentences from her letter:
"I have become aware that your therapeutic needs will be better treated by a therapist other than me in light of the intensity of your transference dynamics and choices within that transference as we discussed on 8/10. The wellbeing, care and privacy of you and the other clients of this practice are of my utmost priority and all should be protected and handled within the best of my ability."
If she had never taken a coworker, this wouldn't have been an issue. She could have owned her part of it and helped me through it. She said I invaded that coworker's privacy despite ALL of us SHARING our calendars. She asked "what if you didn't want them to know about a doctor apt". I replied then I wouldn't put it on my calendar. Duh

"As you have shared, you have frequently strongly considered moving your treatment elsewhere and even seen another therapist to test this however be aware that your health care benefit does not provide coverage in that manner and only one therapist at a given time can be active and covered by your benefit." Putting it back on me.

Gaslighting to it's finest.