On Wednesday, Ouzounian – dressed casually in jeans, sneakers, a white shirt and a blue blazer – was spotted outside her home in Santa Monica, as she got into her white Lexus to do some shopping.
The sighting comes just a day after Ouzounian met up with some girlfriends at Beverly Hills hotspot Il Pastaio for lunch, where she was seen clinking glasses and checking her cellphone.
"Christine had the top down on her new Lexus," a source tells PEOPLE. "She was with several girlfriends. She sat on the patio, had wine and toasted with her friends. She kept taking selfies."
Ouzounian nannied for Jennifer Garner and Affleck for several months before they announced their divorce on June 30. While sources close to Ouzounian say she told friends they had an affair, Affleck's rep vehemently denies the allegations.
Ouzounian had been staying at the nearby Hotel Bel-Air in the weeks since the scandal broke. A hotel source conservatively estimated her expenses at the ultra-private hotel to be around $12,100 as of Monday.
A separate source told PEOPLE that Affleck was covering the bill, while a source close to the Argo director contends that he was not.
A source also told PEOPLE that the Batman v Superman: Dawn of Justice star and the nanny are "in touch every day, all day long," but those close to Affleck insist that he and Ouzounian had only a "work relationship and friendship."