Princess Beatrice was out last night for dinner at Nobu in London with her handsome longtime boyfriend, Dave Clark. The pair have been dating since 2006, when Prince Harry reportedly played matchmaker and set them up. Dave, a buddy of Harry's, works for Virgin and is also good friends and colleagues with Richard Branson's son, Sam. Beatrice took Dave as her date to the royal wedding, but she went casual and left her now-famous Philip Treacy fascinator at home for their night out. Kate Middleton, who was spotted at the grocery store, followed suit yesterday with her own dressed-down outing in Wales.