
Here is where my crazy theory factors in "WHAT IF" Sam has told Dean that he's alive but Dean doesn't remember it because 1)there in a time loop or 2) someone or something keeps erasing Dean's memory from him, so whenever he sees Sam it's like it's the first time. Which is very unfortunate for Sam who has to keep trying to get Dean to remember that he has already come to him and told him that he is alive. I mean the theme of this season is "NOTHING IS AS IT SEEMS" so "WHAT IF" this crazy theory of mines is kind of right or maybe just maybe I'm reading way to much into that scene. But a lot of things where off like the fact that Dean didn't yell or even try to make an attempt to hit Sam for keeping the fact that he's been alive from him for a year, and that hug was way off it was nothing like the Sam and Dean hugs we've seen over the seasons. Like I said maybe I'm reading to much into that scene or maybe I'm right. But just in case I am let me post this for all other fans to judge. What if we are dealing with a real Trickster this time?
If you have in theories about this post or about any thing feel free to add on.