How did Eddie's sister view Eddie in the story of the centipede?

In "The Centipede," by Rony V. Diaz, the story is written in first person from Eddie's point of view, so we never truly know how Eddie's sister, Delia, views him. However, Eddie does say that she was very mean, and she "looked at me with increasing annoyance and contempt," and that "she destroyed willfully anything I liked."