The hue matched his new lady love's hair colour: she appears to have dyed her brunette locks red in recent days.
The two were first spotted touring Italy together over the holidays, immediately after his wife of five years announced their split.
Screenwriter Scafaria is best known for her work on the 2008 film Nick and Norah's Infinite Playlist.
She is also good friends with fellow writers Diablo Cody (Juno) and Dana Fox (What Happens in Vegas), who she collaborates with in their writing group they call the "Fempire".
Scafaria is currently working on her directorial debut for her self-penned script Seeking A Friend for the End of the World a romantic comedy that focuses on one man's quest for a meaningful connection amid the 'end of days'.
Us Weekly reported the two engaged in some public kissing at a charity event on February 25.
An insider tells the magazine: 'They were affectionate.
'When they thought no one was watching, they held hands, and she rubbed his back and his neck.'