This isn't going to be an ordinary relationship, by any means--Sherlock knows there's likely going to be a disconnect between what he intends with a gesture and how it's interpreted, because there always is with him and most people. But he's a world's only, and he knows Molly's aware of that. She won't give him awful nicknames or expect him to bring her flowers once a week. She knows who he is.

And who Sherlock is, sometimes, is a man who's willing to meet someone in the middle if he cares enough.

"Ballet. Do you enjoy it?"