Lebenslangerschicksalsschatz is not something that develops over time. It is something that happens instantaneously, filling you and emptying you all at once. You feel it throughout your body, in your hands, in your heart, in your stomach, in your skin, of course you feel it in your Schlauchmachendejungen.

Who she’s playing, how the Doctor meets her, and even where he finds her are all part of one of the biggest mysteries the Time Lord ever encounters. Even by the Doctor’s standards, this isn’t your usual boy meets girl.