Seven rules for a perfect marriage

"To the world, Jessica and Jack have the perfect marriage, and a megahit book to show for it, but behind the scenes, they are falling apart. Can they use their own bestselling rules to save their marriage? Jessica and Jack are so glamorous, so happy, so sickeningly in love. As relationship influencers, they know everything about building a perfect marriage. Meeting at University, they moved to London together to find their fortunes--and now, over...