Wow, that was way darker than Nostalgia all right.
Considering Yuri's masochistic tendencies, he might very well do that one day post-game. It's a bit extreme, but then again when isn't he. And all alone, seriously. I hope that in the minds of his character producers he will one day recognize that he needs others just as much as they need him.
That was very well made though. And somehow it kinda echoes Reesy's The kight of Vesperia, in that Flynn makes it his mission to find Yuri and make him realize the thruth. He's not alone. Geez. The end was bittersweet. Flynn did change Yuri's behavior a tiny bit it seems, bt not enough. It's a very promising ending sentence, however.