Our reader, Mark (35), had never imagined he’d find himself in this situation. For eight years, he and his wife, Emma (34), had what most would consider a solid marriage . Mark couldn’t believe it himself, but he cheated on his wife.They’d met in college, quickly fallen in love, and built a life together—no kids, just the two of them and their cat, Luna. Their life was comfortable, predictable, and in many ways, perfect. But several months ago, Mark made a terrible mistake. He began an affair with a younger woman he met at the gym, named Laura. What started as harmless flirting escalated into something more, something