"John" Sherlock said quietly, walking into the sitting room. John who was sat on the sofa staring blankly at the television looked up to see his flatmate looking rough and haggard. He was used to seeing him like this when he had no case to work on, and for the past week Sherlock had seemed distant and almost lifeless. As he looked up now he could see that he was deeply contemplating something, his eyes were deep in thought, and his stance clearly said that he felt awkward about something. He was leaning against the fireplace; something Sherlock only ever did when he was feeling nervous. John often wondered if the skull on the fireplace gave him security, and if he wandered to it unconsciously.
"I've noticed that you're not your irritatingly happy self lately"
"No. I don't have an awful lot to be happy about"
"This. Well. This bothers me. I have perceived the change in your mood since you and Sarah broke up, and it has come to my attention that you are in desperate need of a damn good shag"