I think it makes sense that she doesn't understand people, since it seems that she was indoctrinated by her Taoist master from an early age and seems to lack actual social skills beyond that of a client and contractor. She even says it herself that she wants to make a friend, and it seems to be implied that she's never had a genuine friendship before. Even her relationship with her master seems very transactional- train hard and don't fail me, and I will continue to teach you and give you a place to stay.