Remus Lupin is highly like a Weasley. He has red hair, and a ripped and tattered robe, just like the Weasleys. Here’s my main theory: He was Arthur’s brother, but then got bit by a werewolf, he wished not to harm the family, so he modified their memories with an obliviate charm, along with a with a wizard couple that wished to have a baby though had not succeeded. He also decided not to interact with his brother too much as a child because it may bring back his memory (which is possible). This is also the reason why he was so easy on his classes, his nephew was in one of them. This is my theory, please like if u agree.
-HalfBloodPrincess1
