She had thought just leaving was the best thing to do for both of them, even though it was killing her. She thought he would be safer and happier without her, and that a goodbye would only make it harder for both of them to do what needed to be done. Thank god for Beard. He had saved both of them so much pain.

Joan smiles at Sherlock as well, then looks up at Ted. "I think I want to try to walk," she says. "I think I can make it."