"It's not until the Towers that he goes back for her journal. And not for a long time after that. For a while, after, he hides away and tries to hate the universe for robbing him of someone so important. He gave River both his hearts and she is buried with them in the Library. He doesn't care anymore. Or so he tries to tell himself."

'Ah, stupid.' Sherlock opened his eyes, 99.95% certain of whom he would see. Complete: 2-3-13.