Hilary Duff & Mike Comrie Split

Hilary Duff & Family: Farmer's Market Fun

In the one of the most shocking headlines of the new year, Hilary Duff and Mike Comrie have split.

The singer-actress, 26, and her former hockey-pro husband, 33, “have mutually decided [upon] an amicable separation,” Duff’s rep tells PEOPLE.

“They remain best friends and will continue to be in each other’s lives,” the rep adds. “They are dedicated to loving and parenting their amazing son, and ask for privacy at this time.”

A source close to the Disney darling – who wed Comrie in August 2010 – says the young couple drifted apart.

“There was no major incident – no big event between the two of them,” the insider says. “They really did drift apart. They have put effort and thought into this decision for a long time. They tried couples therapy, but in the end, they realized at this time, they work better as friends. And they really are great friends.”

As for their 21-month-old son Luca, “They’re still going to go to the park together,” adds the source of their co-parenting plans.

The separation was not “a rash decision,” the insider adds. “It’s something [Hilary] thought through. She really does care about him and he really does care about her.”

In 2009, Hilary gushed about her man: “I’ve never met anyone who can say a bad word about him,” she said. “He’s generous, caring and sunny. We just laugh our heads off.”

“He’s an amazing father,” she added. “He’s so patient and loving and involved. He’s all the things that I knew that he would be.”

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