Does that sounds to you like the behaviour of a serious professional? If yes, then we definitely have a different meter.
I don't think he has that passion for the game, never showed it anyway, maybe he is crying because he can't get some medal to boost his arrogant ego. Neither you nor me can prove any of this, but I know where my money is.
Again, did DD ever sound this arrogant in his interviews? Yes, sure he did have comments that as a Chelsea fan you don't like to hear, included me, but with a cool head, he never sounded this selfish and arrogant, HE had passion for the game. There is a fine difference.