He's a liar. He terminated the therapy because HE decided to, for whatever reasons inside of him caused that. Something about you may have triggered or contributed to whatever inside of him decided to terminate you, but it was HIS decision.

He's a liar. He's not competent. So sorry you have had this experience, and that you have had some trust in someone who was not worthy of it. Very, very sad. I know what that's like.

Do you think that thinking it's something about you that caused it is an ingrained pattern from your childhood? If so, I'm so sorry that you don't have him to help you through this. Maybe another T can? Maybe sending the email in its current form will help but I doubt it. Though perhaps it will help reinforce that the relationship is over, which might be helpful in the long run.