Listen to Elwood. You're trying to understand a lost man - a hard thing to do. Back off. I learned a lot by not looking into small things and instead sitting back and thinking of the big picture. What has his attitude and actions over the last week been saying? Over the last month? You get a better feel overall that way.
As for the secrecy, think of it as his game. He's just trying to make you think, nothing more. He's not hiding anything, just trying to make you think he is. Maybe this is right, maybe not, but it's the best way to treat it. Just laugh at his antics.