Two Very Different Relationships
Michael had three sons, too, but they were older and had already moved out of the house. The girls had very different relationships with Michael, who was a cool, laid-back kind of dad with Sarah, but an uptight and strict disciplinarian with Alissa. He would always monitor her whereabouts and doings.
Source: People
Why was he like that? Well, he told Sarah, who was five years younger than her stepsister, that Alissa needed more guidance and direction in her life. It’s no surprise then that tensions between Alissa and Michael were always high. When she was with her friends, outside of the house, Alissa was a completely different person.