The Green Lantern co-stars seem to be getting cozy off-screen, as they were seen yet again leaving Ryan's Boston apartment early Saturday morning with her pup and his dog.
A source for the 24-year-old Gossip Girl actress told US Weekly, “They’re seeing each other casually.”
Blake and Leonardo DiCaprio broke up earlier this month after five months of dating and Ryan officially divorced Scarlett Johansson in July.
Rumors started flying after Lively was spotted three weekends in a row visiting Ryan.
Is this just a rebound between two hot celebs or something more serious? Only time will tell!