It makes sense, what Guri is saying. Even though it still doesn't feel good that the other had to go through all that awful stuff, or even just the thought that Guri would go through all of it again if necessary, just to reach this point..

Alice only silently thinks about it though, reaching back for the hand that's being held out to her as she's doing so.

.. that train of thought obviously leads her to a particular point though.

"Then.. What will you do, when all of this with the train is over? Will you go back to your world?" It doesn't sound like Guri wants to, given what she's saying about it. About what her status there would be, just because most people would not even view her as a person, despite her obviously being a person of her own.