Think Det. Elliot Stabler’s on-again, off-again relationship with his wife, Kathy, on SVU is rocky? It’s a cakewalk compared with that actress’s real-life first marriage. After playing the dutiful wife both onscreen and off for a number of years, native New Yorker Isabel Gillies packed up her two young sons and left a promising acting career to follow her husband, professor DeSales Harrison, to Oberlin. A few months later, he dumped her, and she was forced to pick up the pieces of her life. This year, she got even: She published the memoir Happens Every Day about the experience, and it hit the New York Times bestseller list. Want to know what makes her revenge even sweeter? She met another divorcee, they fell in love and now live together with their blended family. Time Out Kids recently interviewed the actor-cum-author about single parenting in the city, her career plans and why her ex shouldn’t stop worrying…yet.