EXCLUSIVE: Ben Affleck's Ex-Nanny Is All Smiles at Boozy Lunch Following Vegas Picture Leak

Christine Ouzounian looks to be enjoying herself despite all the recent drama in her life.

The 28-year-old former nanny of Ben Affleck and Jennifer Garner was snapped having lunch at Beverly Hills restaurant Il Pastaio on Tuesday, all smiles while enjoying glasses of white wine with two girlfriends. Ouzounian clearly appeared to be in a good mood, despite a photo having leaked yesterday of her on a private jet to Las Vegas with 42-year-old Affleck and the New England Patriots quarterback Tom Brady, which reignited scrutiny of her relationship with the actor. The trip -- which was taken without Affleck's three kids -- also raised red flags for her friends, a source tells ET.

WATCH: Ex-Nanny's Las Vegas Trip with Ben Affleck and Tom Brady Raised Red Flags for Friends, Source Says

According to an eyewitness, Ouzounian was "grinning and very happy" during the two-hour meal, and her and her pals "toasted every time" as they ordered a few rounds of wine. She also obviously wasn't in hiding, requesting an outdoor table and "flirting with the waiters at the restaurant" -- even kissing a few of them on the cheek and showing them photos on her iPhone -- the eyewitness says.

MORE: The NannyGate Diaries: A Complete Timeline of Ben Affleck's Divorce Scandal

Ouzounian was then spotted driving off in her brand new Lexus with her friends after the boozy lunch.

ET obtained an Instagram from her account posted on Monday, in which she poses next to what appears to be the new Lexus IS convertible -- a car that starts at about $43,000. "Keep Calm and meet my new drop top Lexi," Ouzounian wrote, accompanied by a smiley face emoji.

WATCH: Ben Affleck Meets With Ex-Nanny -- See the Pic That Sparked the Scandal

Ouzounian returned to a Santa Monica home after lunch, but ET can confirm she was previously staying at the pricey Hotel Bel-Air since the scandal broke, where rooms run about $1,000 or more a night. Her activities included dining at Wolfgang Puck's restaurant and treating herself to spa treatments, spending a reported tens of thousands in all. According to a source, Affleck wasn't spotted at the hotel, although she reportedly told friends that she and the A-list actor would have romantic trysts there, starting last spring,People reports.

Garner and Affleck announced their divorce after 10 years of marriage shortly after the Las Vegas trip. Affleck's rep has previously slammed reports that the Batman v. Superman: Dawn of Justice star is romantically involved with Ouzounian, calling them "complete garbage" and "full of lies."

WATCH: EXCLUSIVE -- Ben Affleck's Former Nanny Shows Off a Brand New Lexus

However, Affleck and Ouzounian were photographed during a late-night meet-up on July 17, which a source exclusively told ET that she actually tipped off the paparazzi about so that they could get pictures of her and Affleck together. Watch below:

Ben Affleck's Late Night Visit From Ex-Nanny - See The Pic!

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