Kevin Costner is facing a double whammy of bad news. He won't be returning to Yellowstone after the fifth season as he allegedly had a falling out with co-creator Taylor Sheridan due to scheduling conflicts. Meanwhile, his eighteen-year marriage to Christine Baumgartner has come to an end. The couple has three children together. Fans of Yellowstone are confused and heartbroken over the news, leaving Costner in need of some good news.