Do you remember the episode?
The Doctor and Amy are examining the data of a flight recorder from the starship Byzantium, and see a security feed of River Song standing in front of a doorway, and giving a series of coordinates. The Doctor takes the TARDIS to these coordinates and rescues River right after the door opens, throwing her into space.
Today it’s Valentine’s day… the day when Love is celebrated. What did you do for your lover day? Or any other day?