Quite honestly you can't call her a psycopath ,the lashing out in the MCs foresight was a combination of fear and creepyness , no one asks to be a friend like that , at least not normal people , you don't ask concent to being friemds , unless you are creepy.
Also she could be scared because she acts like a normal person with the blonde dwarf but gets wary of the one person she doesn't know and thinks on killing him quite simple doe to fear of the unkonwn.
Just reading her questions gives you the vibe that these "superheroes" (LOL) know of the other families with magic and the likes.
But that's just a theory , don't roast me boyz. 😢