Kevin Costner and Christine Baumgartner’s love story has come to an end, as she filed to end their 18-year marriage. While Costner is reportedly surprised and doesn’t want the divorce, there are already women who have him on their radar.On Monday at the premiere of “Book Club: The Next Chapter” in New York City, Luann de Lesseps confessed to Page Six that Costner is on her list. “He’s so elegant,” she swooned.