S6E10 - THE GIRL WHO WAITED
WHEN SHE WAS 7 YEARS OLD, AMELIA POND WAITED FOR A MAN FROM SPACE FOR 12 YEARS.  THEN HE CAME BACK.  HE WENT OFF FOR A TRIP TO THE MOON AND SHE WAITED ANOTHER 2 YEARS FOR HIM TO COME BACK.  WHEN HE DID, HE SHOWED HER THE UNIVERSE.  THE MOST REMARKABLE THINGS.  BUT THEN HE LEFT HER SOMEWHERE, AND KEPT HER WAITING AGAIN - FOR 36 YEARS . . .