Libby-is-a-good-girl

It should be amusing actually, John thinks to himself. Had he really just not let himself notice? He'd been living with a man who forced him to notice things, who got disappointed in John when he couldn't see something that to Sherlock was just so bloody obvious it didn't even need one whole brain cell to notice it, work out what it meant and file it away. He had a feeling that if Sherlock had even the first inkling of what John was thinking now he'd get that look on his face which Mrs Clarkson  would get when he handed in an essay on Alexander Pope late, riddled with spelling mistakes. "Really, John you must try harder next time." Sherlock