The 28-year-old former employee of 42-year-old Affleck and 43-year-old Jennifer Garner -- who was reportedly involved in a romantic relationship with Affleck -- broke her social media silence on Sunday, in an Instagram obtained exclusively by ET featuring a flattering paparazzi shot of herself.
"'She's just a girl and she's on fire' -- Alicia Keys," she captioned the snap.
Late last month, a source told ET exclusively that Ouzounian actually "tipped off the paparazzi" about a July 17th rendezvous with Affleck, so that photos would be taken of her and the Oscar-winning actor together. Both Affleck and Ouzounian smile big in a photo taken at a rental house during the late-night meet-up.
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." But Christine is reportedly claiming to friends that her relationship with the A-list star did indeed become intimate, according to People. ET can confirm she was seen at the Hotel Bel Air last month, where Christine reportedly told a friend she would have trysts with Affleck.
Ouzounian's Instagram post comes after Affleck and Garner were spotted together in Atlanta on Friday, where she's been filming Miracles from Heaven. A source tells ET that "the mood was cordial but distant," when the former couple and their three kids -- Violet, 9, Seraphina, 6, and Samuel, 3 -- spent time together at a local mall the following day. The two parents barely spoke, nor did they touch or hold hands, but they did both wear their wedding rings.