Showbiz Spy reports: The Mad Men star has split from screenwriter and director Noah Miller.
The pair met on the set of the film Sweetwater, which began production in New Mexico in July 2012, and were first linked in August when they were photographed holding hands in Santa Monica, Calif.
The duo split awhile ago but kept their breakup under wraps.
The former couple recently reunited with Noah and his twin brother, director Logan Miller, during the Sundance Film Film Festival in Park City, Utah.
“They were completely fine in each other’s company, so it didn’t seem like it was an ugly breakup at all,” a source says of the exes.