How come Andromeda didn't fight for Sirius's release from Azkaban like surely she would know Sirius would never do something like that especially when he spent his whole life trying to defy his family's ways. It's shit that no one believed him, or even gave him a chance to explain, like I find it really hard to believe that Remus wouldn't have fought to talk to Sirius just once even if he did hate him he should still have been slightly suspicious. I think that's just plot convenience bc there's no way, so in my headcanon Sirius got a trial and just lived those 12 years with Remus, saw the paper with Peter and tried turning him in to the ministry but Peter escaped bc we still need to resurrect Voldy. I say they couldn't visit Harry all those years bc Dumbledore didn't want them to for whatever blood protection reason. (Not gonna bother to explain bc I'm pretty sure you know what I'm talking abt)
also there ain't no way in hell Remus would ever forget to take his potion even for seeing Peter on the map, again plot convenience