Not to belittle Sam's own troubles and pain, but Jeez, HELL! Hello, I think that out does Sam's hunting alone (which he didn't have to do, he had Bobby) He chose to leave and go off with Ruby. He chose to break his promises to dead Dean. So I don't have much sympathy for him.

Dean was in Hell and I want the writers to show that Dean suffered through something torturous and beyond imagination and let Sam find that out. As it stands, Sam just thinks cause Dean can't remember all's good. Dean hasn't suffered at all