The Right Man

Spoilers to 3x02, Sign of Three. A wedding wasn't really the best place to break off her engagement to Tom, but 'meat dagger' was the last straw for her. Stabbing him with a dessert fork probably didn't help either. She felt guilty - Sherlock, on the other hand, seemed to find it all rather amusing. He was, however, serious in his intention to stake a claim now she was unattached.