[ .. He's laughing. Alice isn't laughing along, since she's so bad at positive emotions, but somehow she feels.. kind of glad all the same. She thinks it's feeling glad anyway, as she's thinking about the emotion that blossoms in her chest. She's just happy that for once she's managed to make someone - a friend, right, maybe? - feel better rather than worse.

It makes her pause for a moment before she continues. ]

Well, then I have terrible news for you. You're older than me, so your chance of growing old on this train is even bigger than mine. [ She has a few years' worth more of escape chances! ]