There are so many different beings out there though that aren't human. [ And not just robots like Guri. ] Even just on this train. There are aliens, other species entirely, other.. er, mechnical beings, as you say.

[ Not to mention that Alice is practically used to being surrounded by non-human beings. It's what happens when you escape to your fantasy land more often than you actually live in the real world. ]

And plenty of them seem to have found someone to care for them in such a way. I don't think you should be so pessimistic about your chances, if you wish to have something like that yourself at some point.