For me there would be multiple things coming up.

There were two rejections here: one was that he moved to sit further away from you, which may have felt like a rejection. Also, he didn't use your suggestion for the seating arrangement. That is a rejection too -- "I don't like your way, I like my way." Also for me there may be some power struggle too. If originally my T had given me the right to tell her, I want you to sit this way, and then changed her mind, I would feel I'd lost some kind of power, like something had been stolen from me. I would feel very defeated from losing power especially because it is hard for me to gain power anyway..

Definitely talk with T about what came up for you here. I know it is hard to be honest when you are angry and confused, but the best way to heal is to just speak up even when it feels AWFUL to do that..

Sorry, Canary.