Between Hasi being Hasi and the reaction of her dog whenever Bruce is in range, he doesn't need to knock - he does anyway, because it feels like a novelty whenever he does. Because he knocked when he first went to find her, when he showed up in Baedal. He realizes as he knocks that he still thinks of her - when he does think of her - as living in that first apartment all this time.

He doesn't really have a reason for showing up. It's been a while since he's showed up on her doorstep purposeless and casual, and for a moment it feels like it's been years, like the last time was in a bar in another world. He drops his hand back to his side and tries to wonder if it's just the fog contamination that's making him feel strange, lately. But he knows it's not.