It's the same old Girl Meets Boy, Girl Looses Boy, Girl travels through time and meets herself, and Boy again, only it's not quite the same Boy, and… er, try It's the same old You're trying to change the world, but it's trying to change you, too, and it wins, and it's you that's changed and not the world, only you're part of the world so it's different, too, and watch the sexes of the Professor and Doctor because something fishy is going on there… er, take It's as easy as A is for Beginnings, B is for Fallback Options, C is for Average. Things are changing, and it's hard to find love and make the world better when standing on shifting sands. Same old story, right?
This is the second story in the second movement of the Retcon Series (eleventh overall). It builds on the other stories but is also a stand-alone novella that can be read on its own.