Tyler Hilton and Megan Park are over! The One Tree Hill alum took to Instagram on Friday to announce that he and The Secret Life of the American Teenager actress have broken up after 10 years of marriage. He wrote: "A life update: I've never been super comfortable sharing personal information about our family life, but I've seen enough speculation online that I thought warranted clarity. Some time ago, Megan and I decided to end our marriage. We continue to make the kids and coparenting the priority. Thanks for continuing to respect our privacy.