Homesick - Realisation.
Seth didn't go to find the girls like he said, heading for the roof and taking out a cold beer, sitting like he did that night with Vincent when they finally surpassed a boss-and-employee relationship for good.
Seth sipped his drink, listening to the sound of the city below. It was like this place was still alive. The world had ended, but life found a way.
The sun still shined. Birds still chirped in the trees. And humans were still around, even if they were few and far between.
"Celestia, I won't lose my humanity, will I?"
—I remember the days you complained about humanity. Now you like it?
"It's just that back then, I was too immature; no matter how much I change, it doesn't remove the fact I am human, right?"
—That is correct. You are human, Seth Darkwood. You just have some...extra perks.