Kelly Osbourne on Engagement to Matthew Mosshart Being Called Off: "It Just Happens in Life"

Not every big story has a lot of drama behind it.

Kelly Osbourne and Matthew Mosshart revealed that they called off their engagement yesterday, and if fans are waiting to hear some ultra-juicy details on their split, well, they'll be waiting a while.

During Giuliana Rancic's exclusive sit-down interview with the Fashion Police star, Kelly explains that ending her engagement was just something the couple decided needed to happen.

"It was a mutual decision. We love each other very much. It just wasn't the right time for us, and I think if we weren't as mature and adult than we are, then we could have gone down a road that wasn't really nice," she tells E! News.

"We're still really, really good friends; it's just we're not living in the same house," Osbourne added. "There's no dramatic story. I wish there was so I had something to tell people but no... it just happens in life."

Mosshart, a vegan chef, proposed last summer while they were vacationing in Anguilla and the pair announced their intention to tie the knot in July.

Shortly after announcing the split, Kelly went on a tagging spree with Justin Bieber. The single star documented their escapades with a camera phone and shared pictures of their handiwork via Instagram.

"It was my best friend's birthday," Kelly explains to Giuliana. "We stop by and all of a sudden there were people spray-painting and then I got a lesson on spray-painting from Justin Bieber and he's really lovely and he's really nice, completely different than the media perception.

"And then I really sat back and thought, 'He ain't half as bad as I was at his age, so he's all right [laughs]."