Mila Kunis and Macaulay Culkin

Mila Kunis admits she wronged ex-boyfriend Macaulay Culkin

Mila Kunis blamed herself for the pair's split

Emmy Griffiths

Mila Kunis has opened up her relationship with her ex-boyfriend, Macaulay Culkin, and admitted that it was a "horrible, horrible breakup". Speaking to Dax Shephard on the Armchair Expert podcast, the Friends with Benefits star explained: "I had a horrible breakup. I had a horrible, horrible, horrible breakup. I [expletive] up. I was an [expletive] in my 20s and I'll be the first to admit it." Mila, who is now a mother-of-two and happily married to Ashton Kutcher, started dating the Home Alone star when she was just 18, and the pair were together for eight years.

mila-kunis-macaulay

Mila opened up about her split from Macaulay

Speaking about owning up to her mistakes in relationship, she continued: "That's kinda something that took me a long time to come out and be like, 'Yeah, you know what, I was a [expletive]', and accept it and I own it. It's [expletive] up what I did. It's [messed] up what I did, and it's [messed] up how I did it." The 34-year-old has previously opened up about the difficulties of dating Macaulay on The Howard Stern Show, saying: "He was huge because you couldn't walk down the street with him. Fans were just screaming... they didn't know how to react. It wasn't a normal response to a celebrity, fans responded in a very abnormal way."

READ: Macaulay Culkin talks being a recluse at Christmas because of Home Alone films

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Macaulay has always remained tight-lipped about his romance with Mila, and is a notoriously private person. However, he appeared on the Ellen DeGeneres Show for a rare interview back in April, and opened up about taking a decade off from filming after becoming a star at a young age. He said:"I took about a decade off… I was tired of it to be honest. I did 14 movies in six years, I was away from home a lot I was away from school. I needed something else… I was looking forward to high school." Of attending school, he joked: "I lived the dream! It was great to be around people my own age for once."

READ:Ashton Kutcher goes in for a passionate Kiss Cam smooch – watch Mila Kunis' hilarious reaction!