Arquette and Cox Photo by: Paul Redmond / WireImage
Couples Watch | Courteney Cox, David Arquette
• Courteney Cox and husband David Arquette, dining with singer Ben Harper and his wife Laura Dern at Il Sole in West Hollywood. "They were deep in conversation," an observer says, as the couple ate prosciutto with marinated eggplant, roasted peppers, goat cheese and olives. Adds the onlooker: "Both couples looked very much in love, or at least their respective kissing said so."

• Leonardo DiCaprio and his model girlfriend Bar Refaeli, sharing a romantic dinner at Spago in Beverly Hills. The pair ate crispy Monterey Bay calamari plus sweet pea and mascarpone agnolotti. "They were whispering all night," an onlooker tells us. "They looked really cute together."

• New couple Cheryl Burke (of Dancing with the Stars) and Matthew Lawrence, snuggling together in a VIP booth at West Hollywood club Area. As the evening wore on, an onlooker tells us, "The pair hopped onto the dance floor and busted some serious dance moves." Which song got the two moving? It was ABBA's "Dancing Queen." "They looked really happy in each other's arms," the clubgoer says.

Mark Ruffalo and Sunrise Coigney Photo by: Eric Charbonneau / WireImage
Couples Watch| Courteney Cox, David Arquette, Mark Ruffalo
• At eatery Mr. Chow, John Travolta and wife Kelly Preston, holding hands and sharing a dinner of sautéed sea bass and squab with lettuce.

• Mark Ruffalo and wife Sunrise Coigney (who owns celebrity boutique favorite Kaviar and Kind), sticking close together at a crowded Chateau Marmont. After Ruffalo finished chatting on his cell phone, the two sat together and then shared a meal indoors. Says an onlooker: "They looked really cute and in love."

• By KIMBERLY LANSING