They glance at each other. Then Sherlock looks toward Ted.

"I took Kitty on as my protegee during a period of time when Watson and I had separated."

"That was in the wake of what happened with Mycroft," Joan says. "Which...is another story. Suffice to say, I decided I wanted to live on my own. And Sherlock decided to abandon me entirely."

"It's not quite that simple, Watson," Sherlock says quietly, looking away. "You had lost your lover, but I lost my brother, and, it seemed at the time, my partner."