The two broke up before Thanksgiving after going through counseling in an attempt to work on their relationship, according to Hollywood Life.
The Friends star, 51, and Snow Patrol rocker, 39, started dating near the end of 2013 and got engaged in June 2014. They both shared the news via Twitter. Courteney tweeted, "I'm engaged to him!" while Johnny posted, "I'm engaged to her!"
During an appearance on Jimmy Kimmel Live, Courteney revealed that Johnny proposed to her at Jennifer Aniston's home. “We went to Jen’s house for dinner because it was [my daughter] Coco's birthday, and she was god mom,” she recalled. “They [Johnny and Coco] made a plan to count down from three, and when they got to one, he was gonna get down on his knee and say, ‘Will you marry me?’ and she was gonna say, ‘Will you marry him?'"
The two have appeared quite happy since the proposal -- but some saw storm clouds on the horizon. A source close to Courteney tells ET, "That was never going to last." In August, Johnny supported Courteney at the premiere of the Amazon series, Hand Of God, in Los Angeles, California.
She also told Ellen DeGeneres in August that her 11-year-old daughter was planning her wedding. "She wants to be the maid of honor, which I think is weird, but... she wants to be the flower girl, all the bridesmaids," Courteney quipped. "She’s very excited about it."