sentences:  The addition of Adam to the cast provided a male villain to the show.Over the next seven seasons, Adam would be motivated primarily by jealousy, undermining the professional successes of his brother Steven and brother-in-law Jeff, in an attempt to curry favor with his parents, especially his father.Adam would betray both his parents multiple times but would be forgiven, even when his acts were criminal, due to residual feelings of guilt for Adam's difficult childhood.