The 26-year-old singer and actress and 33-year-old former NHL hockey player have broken up after three years of marriage, a rep for the actress/singer said.
"Hilary Duff and husband Mike Comrie have mutually decided to an amicable separation,” the spokesperson said. "They remain best friends and will continue to be in each other's lives. They are dedicated to loving and parenting their amazing son, and ask for privacy at this time."
The pair, who married on Aug. 14, 2010 in a Santa Barbara, Calif., have one son, Luca Cruz Comrie, who turns two years of age in March.
The split was not "a rash decision," a source told PEOPLE. "It's something Hilary thought through," the source explains. "She really does care about him and he really does care about her."
The ex-Disney star and her man didn't show any signs of bad blood prior to the split announcement.
The couple took little Luca to Disneyland for his first time in December and Duff shared an adorable photo of the apparent happy family, writing: "We braved Disneyland yesterday! Luca's 1st time."
Back in November 2013, Duff opened up about the possibility of having another child with Comrie.
"If I had another boy, I would be happy, but I would like to try for a girl and I'm not sure that I want to have three kids," she said.