"I..." she frowned again, ever so slightly, and her own hand absently lingered over the spot on her face where the Doctor's had just been.

"I am not certain," she admitted, quietly. "It is all quite strange, discerning the nature of my relationships with those who claimed me as a friend. If there is anything I have forgotten that is important, that would make a difference in how I relate to you... you would tell me that, would you not?"