Bryan Bedder/GettyAmanda Seyfried was seen with ex Dominic Cooper a few weeks after her split from Ryan Phillippe.
The exes, who ended their on-and-off relationship in May of last year, were photographed shopping together in Los Angeles on Monday.
Seyfried, 25, opened up about their breakup in the April issue of Elle, saying she "foolishly" thought Cooper and his ex-girlfriend "were done and Dom and I were involved."
"But we weren't really as involved as I thought," she said. "So I got my heart broken pretty hard."
The couple had previously split but reunited, and "it took a long time for us to break up again," Seyfried told the magazine.
The actress and Cooper, 33, met while filming the 2008 movie-musical "Mamma Mia."
"[It is] one of the easiest things in the world," Seyfried said of falling in love on a film set. "You're both open. You're put in a situation where you have to make out with each other. It's easy for things to get carried away."
The relationship was eventually challenged by the long distance that often separated them as they both went on to other projects.
Seyfried said she found it "really hard to open [herself] up to a new person" after the two called it quits for good.