>>533691309
Alain was not mentally unstable, he left the Narzissenkreuz Institute because Jakob was obsessed and unhinged with transferring souls.
Alain was a very honorable Fontainian man to the very end. Seymour the robot dog, Alain's creation is 490 something years old. Sandrone is someone else, and worse she was stealing Fontainian technology using a Fatui spy in the Steambird and she probably stole Mary-Ann's likeness. In 5.8, she tried to steal ancient Natlanese artificial intelligence tech.