“The train pulls in and she taps her Oyster card on the reader, stepping on board. You both wave as the doors close. She smiles at you as she settles into her seat, waving again. You begin to do the same, chasing after the train in pantomime fashion, spurred on by her laughter. You run and wave and laugh until the train gathers speed and the platform runs out. She escapes the frame, until it is just you on the platform, a little breathless, a little ecstatic, a little sad.”
