Entertainment Tonight reportedly found 28-year-old Christine Ouzounian's Instagram profile, noticing the stars' former employee broke her social media silence Sunday with a paparazzi shot of herself. Ouzounian captioned the pic with an Alicia Keys quote from "Girl on Fire."
In late July, US Weekly reported that Affleck and Ouzounian were dating, causing the Batman v Superman: Dawn of Justice star to vehemently strike back.
"The story is complete garbage and full of lies," the actor's rep said. "You shouldn't be able to hide behind 'blind sources' and attempt to destroy families going through a difficult time...It's like story time in kindergarten. It's shameful and desperate."
Sources told the magazine Garner fired Ouzounian after she discovered the nanny's friendly relationship with her husband. Ouzounian and Affleck supposedly kept in touch, and the childcare worker was allegedly photographed with the star last month.
Garner and Affleck announced in June they will divorce after 10 years of marriage. The former couple share 9-year-old Violet, 6-year-old Seraphina and 3-year-old Samuel, and will reportedly rent Brooke Shields' home as their own house undergoes renovations.
Additional reporting by Annie Martin.