I think he's in denial, to be honest. It's not hit home yet. In the video he posted on his website post-fight, he said he was still a 'champ'. Now I know what he means by this on one level but it smacks of a man who has yet to shake hands with reality. The alternative is he doesn't care so much that he lost. That's worse if it's the case...
It's no wonder there are so many conspiracy theories abound. It's like he was a reluctant actor in a fix. His behaviour before, during and after the fight has been very odd and in total contrast to previous fights. Where is the passion? It's like he doesn't care at all.