‘Who would have guessed that the person who gives the best advice about marriage was the guy responsible for getting you out of yours?’ – New York Times''Brutally honest and wildly useful'' - Steven BartlettJames J. Sexton has spent over two decades in the trenches of high-stakes divorce – watching good people tear each other apart over bad communication, broken trust and problems that could’ve been solved early on. If they’d only known what to look for.How Not to F*ck Up Your Marriage is what he wishes every couple had read before it was too late. This book is an early warning system, a no-punches-pulled guide to the small mistakes, blind spots, and lazy habits that quietly destroy relationships – and the real work it takes to stay in love for the long haul.From emotional drift to financial landmines to social-media sabotaging, from sex to silence to the granola box that finally breaks you, this is a deeply practical, deeply funny guide to protecting your connection, resolving conflict before it escalates and staying close through real life.Whether you’re in a relationship, out of one, or wondering if yours will last, this is the relationship book written by someone who has seen how they end – and who, despite it all, still believes in love.