Her being 14 is really important, as it stresses that like others, the war has manipulated her. In this case, it manipulated her into cultivating negative childhood behaviors and her above average intelligence.
@Bastion2.0 she’s not a psychopath. She does not present enough symptoms for that diagnosis. A lot of it feels like she was never able to get over bad habits that young children have, that with the help of others, we grow out of. She definitely does have some type of disorder, but it’s kind of hard to tell which one.