Unpredictable
Mark’s sister, Lisa, had always been a source of tension in their relationship. Recently, her difficult pregnancy made her even more unpredictable and demanding. Lisa had always been possessive of Mark, seeing Sarah as a rival rather than a future sister-in-law. Her disapproval of their relationship was no secret.
Sarah had hoped that Lisa would set aside her animosity for the wedding day, but it seemed that Lisa had other plans.