Johnlock fluff (A short story)

John and Sherlock have an argument about Sherlocks case obsessions and lack of socialising. Making them both emotionly vulnerable when the topic of dating is brought up. Sherlock finds himself in a sticky situation when he tells John he's met someone. Who exactly? John makes it his priority to find out how Sherlock Holmes, the most antisocial person on the planet, somehow got into a relationship.