Tw: mental fucking breakdown
Post Azkaban cause his trauma is overlooked (and some Azkaban)
Often saw his friends in his cell though they weren't there. He'd talk to them like nothing happened. The ones he sees most is James, Regulus and remus
After getting out, he'd follow Remus to wherever he was staying. And it was like he wasn't even Sirius. He was quiet all the time unless he had more hallucinations, asked permission for anything, could barely even pretend for Harry. He barely managed that but it would drain him and it'd be bad at home
His hands shake so bad that his once perfect handwriting is messy and blotchy, like ransom notes
Confuses McGonagall's animagus for Reg
Bro didn't even take Reg's death well. Had hallucinations at least once a day where he'd just talk or tease Reg and apologize for how he acted as a teen but would never acknowledge that his brother is dead
