Everyone keeps saying he was "partying" with dallas...all the source says is that he was in attendance. Nothing wrong with him being there when he was a maverick for so long.
Everyone else there appeared to be partying like crazy. Was he merely "in attendance" when everyone was drinking one of the 250 bottles of bubbly? He just lost a shot at the NBA championship. The highest achievement he could attain as a basketball player. It should mean something. No he should not be with them and Mavs fans at a celebration of his loss. If he really did have some close relationships, which I doubt watching him work to get Jason Kidds attention after the game, he could have gone to lunch or something.