Honestly, the sentiment he's expressing is a pretty normal one. Yet for some reason it doesn't seem to be normal to Alice, since his answer still makes her look very confused, as if he just said something she can't understand at all.

It takes her a moment to even speak up again.

"You might be one of the first people I've met who cares about whether or not people you've only barely met are alright or not." .. well, outside of the train, that is. The ratio of nice people seems to be way higher here, which is.. odd, for sure.