Molly definitely doesn't expect or want ordinary with Sherlock. She's had enough dull suitors and she knows what she's signing on for with him. He'll be entirely distracted while on a case. He won't remember important dates. He'll sometimes make her upset and won't understand why. But she's had those problems with other men. How much worse could it be? And on the plus side, she's already in love with him.

The change in topic throws her off.

"Ballet?" she asks. "Yes. I used to practice it even. Back in college anyway. Why?"