Sheila Blair became friends with Bella Swan, who was also lonely. Because of Bella's constant pursuit of Edward, she had to get involved with the Cullen family and fell into a strange situation.
Sheila smelled a similar feeling from the new student Bella, which prompted her to get closer to Bella. They were equally lonely and soon became close friends. As for the appearance of Edward, Bella's crazy obsession with unknown things, although Sheila tried her best to stop it, she failed to achieve her goal. Bella and Edward become lovers, and Sheila's family is also forced into danger.