Revealed-Beyonce would end Jay Z marriage if he cheated

Beyonce and Jay Z have long been plagued by cheating rumours, but according to the author behind a new unofficial biography,Beyonce would leave her husband if she found out he was unfaithful.
J Randy Taraborrelli' s Becoming Beyonce: The Untold Story doesn't believe the rapper would cheat because Beyonce would almost certainly end their marriage. He told Heat Magazine

One thing I've learnt from spending two years looking at Bey's life is that if you think she's that girl who's going to sit on the sidelines and watch her husband cheat, then you are very wrong,". "She has other issues, as we all do, but she isn't wiling to accept the unfaithfulness of a spouse. She's been very clear with Jay: 'If you cheat on me, it's over. He added to Heat:

 "I do really believe in [her and Jay'z] relationship. And the reason that I believe in it is everything they've gone through to make it work.
"It's hard-earned, because they've been together for more than 13 years - when you have that kind of investment in a relationship, it's not just going to end overnight. Even if they have a bump in the road, they're going to work to make sure that they can find a way to be together. "