Sam sighs softly. He understood. Back on the islands, Dean hadn't known how much Sam had suffered in Hell and Sam had fought the urge to lie and pretend everything was fine. But he hadn't be able to and he'd felt like that had sent Dean home. Sam would never forgive himself for that just like he never forgave himself for any of his mistakes. "I would never forget you Jack, you're family. I don't forget family. My heart won't let me."