There's no spark of recognition or romantic eyes locking and it all comes flooding back. None of that flowery crap. You might feel something deep inside, and he might feel it too, but you'll ignore it because your brother is dying, and he'll ignore it because he doesn't have the time to figure it out right now. He won't remember you, of course he won't, because you're not that lucky. He'll be lost in ignorance, swept up in domesticity and a "wife", while you're left out in the cold with the burden of remembering.
Everything.