This was awesome! I have a weakness for amnesia!fic because it's a great way to explore characters and their motivations. I kept thinking back to your first post and that note about this being a story in which Dean is amnesiac, but it's Sam who manages to discover things about himself.
And you did give me Sam in all his fucked-up glory. All his actions, thoughts, promises were very Sam like. What I found v. interesting, though, was that Sam kept hunting and he kept enjoying it, despite all his protestations about hating it. It was fascinating to see how, purged from some of the issues I think Sam balks against, he ended enjoying hunting.

Dean was... breathtaking. Yes, maybe Dean was the person that could have been if he weren't so burdened. Maybe he was happier, yes, but he was also not!Dean in fundamental ways and one *I* was missing. Only the knowledge that Sam was missing that Dean as well lessened the impact of what Sam did to him.

And then the ending! The setting and the dialogues were pure perfection. One of the things I've learned about Sam during the years is that he rationalizes to the point he ends believing in his rationalizations and I think you showed it beautifully here with Sam not being really sorry about taking Dean's memories, but sorry that he'd been caught. Thankfully the Trikster ended the charade, so now, maybe, Dean and Sam can go on, maybe they can start healing.
Thanks for the great read!