I understand your anger. This didn't happen to me with a T, but my ObGyn did the same thing. She worked out of a major hospital and delivered two of my three kids and was the only gynocologist I'd ever had (I saw her other times outside of having kids). I got a letter she was leaving the hospital to practice at a low income clinic and was not taking any patients that didn't use this clinic. I was devastated that even if I could pay another way I could still not see her. I understood what she was but I still thought it was very unfair. I know it sounds weird to be so loyal to a gyno, but he had quite a following of patients.

In your case it's worse since she could still see private pay patients on the side but is choosing not to, which is odd. I'd write everything you want to but refrain from actually giving it to her. She may change her mind and see private patients in the future so you might want to end on less hostile terms. I definitely see the value in getting it all off your chest, however.