News Mark Zuckerberg Weds Longtime Girlfriend By Raphael Chestang 1:12 PM PDT, May 20, 2012 Facebook Mark Zuckerberg made perhaps the biggest Facebook post of all time on Saturday when he wed longtime girlfriend Priscilla Chan. RELATED: What is The Social Network? Zuckerberg, 28, updated his relationship status after exchanging vows in a small ceremony in the backyard of the couple's Palo Alto home, People.com reports.According to the news source, the guests were surprised by the ceremony. They were reportedly told that the event was going to be a celebration for Chan, who just graduated from UCSF medical school. The couple have reportedly been dating for nine years, having met while still Harvard undergrads.