Beyonce reportedly stayed with Jay Z because of Blue Ivy. That according to an “insider” (insiders keep a job). Jay Z and Beyonce have been married nine years. He’s admitted to cheating on Beyonce. The betrayal, like with most, has been very hard. They worked on their marriage and keep working on it. A source said, “If it’s wasn’t for Blue Ivy, they might not be together. It took them years to get to the point where they are now.” Read more about this here.