you made your decision, and they made theirs not to talk to you, deal with it and stop crying.
Boston was very very good to you, yet you took less money to be with the team probably most hated by the team. The team that broke your young point guard's arm during a playoff game.
Boston was very very good to you, I did not see Garnett's or Pierce's family getting major airtime during Celtics games like your mother did. Yet you bailed at the very first hint of adversity. You did not reach out to Kevin or Paul as you ran out of town to the hated heat
You are right, you made a choice that was best for you, NOW DEAL WITH IT.
Of course Doc talked to you like you are on his team. YOU ARE ON HIS TEAM. It is called the team of traitors. PP and KG were shipped out of town against their will, they went because management wanted them to go. YOU AND DOC, not so much.
Now get lost.