She's just as traumatized as he is but in a less direct way. She left home on a little trip just to be told that she can never go home again and everyone she knew and loved was gone forever. Her (from what I can tell) childhood best friend, whom her last memory of is a fight that could never be resolved because of the goblins, appeared out of nowhere; a tangible physical link to a place and time that was wiped from existence. Care, pain, shared history culminating in some quite interesting emotional interplay, there is no such thing as therapy in such a world, it is harsh and usually quite a short and brutal life, education is next to non existent and monsters exist and want to kill everyone. This is written by someone in our modern world with civilized sensibilities, but they're doing what all writers who have any talent try to do, they're putting themselves in the shoes of someone who is not them and then writing them from that perspective rather than their own. Well, as best they can.