He looks like a man who is doing his first interview after having a very humiliating loss in his career and having to deal with the media again. You have to imagine, he's doing an interview so people who have been making fun of him all this time can sit and listen to how bad/good he is doing now. It's a lot of pressure and I'm not surprised he seems a bit off, a bit irritated, trying to keep the funny and a good attitude but struggling.
I'd be a bit off and pissed too if I was doing an interview for "fans" that have been making fun of me for a while too.
If anything, I think he's doing very well since he didn't tell everyone to go **** themselves for being such douches when he wasn't doing well.