Jon Gosselin said I do! Kate Gosselin's ex-husband married his longtime girlfriend Stephanie Lebo over the weekend! An insider spilled the tea to TMZ on Monday, sharing that the couple celebrated with 180 loved ones at The Barn at Silverstone in Lancaster, Pennsylvania. Related: Kate Will NOT Be Spending Thanksgiving With Her Kids Jon was joined by two of his eight children - Hannah and Collin. His son was by his side as one of his groomsmen.