"You goin' through some kinda mid-life crisis thing? Just backwards?" A crisis usually involves someone mundane acting out in wild ways, but maybe Sirius is going the other direction with it since he started out rebellious.

"Or maybe you were always a secret softie at heart." And it's bitten him in the ass, because now he has a whole house full of orphans or some shit to take care of. Ghoul doesn't know what, exactly, the arrangement is but he assumes it must be something like that, because a house full of adults can take care of their own damn selves.