He's had a hell of a career so far, everything's been accelerated and it's no surprise that as a result it's gone to his head a bit.
He's not stayed at one club long, so hasn't had chance to develop the relationship skills to make him a proper team player. It's all fuck everyone, burn your bridges, then jump ship to another club.
Problem for him will be any moves from Madrid are going to be downwards. In the next couple of years he'll probably hit the difficulties that will either make him or break him. He'll either grow up and turn it round, or by the time he's 28 he'll probably be on about his 10th club.