Kristin Cavallari, 37, reveals new boyfriend Mark Estes, 24, met her kids before first date March 12, 2024March 12, 2024 Vanessa Serna The "Hills" alum shares Camden, 11, Jaxon, 9, and Saylor, 8 with her ex-husband, Jay Cutler, to whom she was married to from 2013 to 2022.