Posse black and white striped tube dress for her date night with hubby Harry at Tre Lune in Montecito.The Duke sported a pale blue linen button-down shirt and white trousers for the evening out.The Italian eatery has a reputation for attracting celebs like Kevin Costner, Kenny Loggins, and Kourtney Kardashian and Travis Barker.“From what I gathered, they enjoyed their food and had a nice time,” a source told People about the couple’s night on the town.Meghan and Harry also appeared together Wednesday in a video posted to their Archewell website to announce winners of youth technology grants.Earlier this week, Harry stayed home in Montecito with the couple’s two kids while Markle reportedly celebrated her trip around the sun with some girl friends, including Portia De Rossi, by going to see the “Barbie” movie at a theater in neighboring Santa Barbara.