Do you think some pokemon evolve by trading because they think you’re giving them away forever, so in their fear of abandonment they evolve into something better than they were so you’ll love them again?
Remus and Harry make me so sad. Think about the first time Harry met Remus, on the Hogwarts Express. Remus is staring at this teenager, this boy that is so painfully Lily and James’ son. In another life he would have been ‘Uncle Remus’, swinging by every Sunday for supper, babysitting Harry with Sirius. Instead he’s a complete stranger.
Plot twist: The next companion is a normal girl/boy who only dies once in their lifetime and has no remarkable back story but he thinks they’re wonderful because they are human and the Doctor needs reminding that you don’t need to be a mystery to be remarkable.