okay so bear with me i saw a post about Sirius having a panic attack and venting to James about it in the library and Regulus was eavesdropping and then got into this rabbit hole where Sirius was going on about how he hates that 'he thinks he's better than everyone and he says that he doesn't like it either but then he does nothing to stop it and just stands around while we're (Sirius and regulus) are getting cursed and I hate him' and Regulus thinks that Sirius is talking about him so he runs away but Sirius is actually talking about their father and then when Regulus runs away Sirius finally realizes that he's JUST like his father.

















