Family members expect to be included in family events.
Mary is invited to a family reunion but it required to bring one other person.
Mary wants to go to the family reunion with someone.
Mary invites her siblings to the reunion instead of a friend, and they go together.
Mary decides to ask a friend instead of a family member to come with her, and they go together.
Mary and her siblings have a great time at the family reunion.
Mary's family feels Mary is ignoring them and their relationship weakens.