What if Sirius wasnt able to see the moon in azkaban. What if he only every saw the constellation Orion.
Sirius kept all his memories of Remus buried deep down in fear of the Dementors taking them away. Bellatrix would sneer at him through the walls.
“Maybe you are Daddy’s son after all!”
“Daddy’s favorite little heir”
Sirius would look outside the first few months, hoping for the smallest glimpse of the moon. To remind him he was good. Instead he saw his father. Smiling at him,
“I knew you werent a discrace to the Noblest House of Black.”
Soon, without the moon to remind him who he was, he began to belive his father. Bellatrix would laugh, and sneer. His father would praise him. His moon left him.
Sirius truly believed he was guilty, and didnt deserve his moon. His memories of the way the moon laughed and listened to movies. He stopped hiding them and rather pushed them to the forefront of his mind. The dementors took them. Drained his precious moon away.
What if after 12 years, Sirius forgot Remus. What if after 12 years, Remus found his little star became a supernova.