The stunning breakup of Charlie Sheen and Denise Richards is a sad story that nobody in Hollywood saw coming. Now "Extra" is learning more about why the couple has decided to split up.

The couple has released a joint statement that reads, in part, "We're deeply saddened by the recent events, and our love and concern for daughter Sam, our unborn child, and each other. We ask that you respect our privacy during this difficult time."

Just two weeks ago, Sheen was on "Live with Regis and Kelly," showing off pictures of his daughter Sam, who will turn one next week. And just last week, our Mark McGrath interviewed Charlie with his dad, Martin, and Charlie couldn't stop gushing about his family life and his second child on the way.

"Getting home," Charlie said when Mark asked him what was the best part of being a family man. "Coming home at night, you know, when it's not about being famous. It's about other responsibilities and commitments."

Denise and Charlie didn't just share a home life. The two co-starred in "Scary Movie 3," and Denise played a recurring roll as Charlie's on-again-off-again girlfriend on his hit TV show "Two and a Half Men."

So while this fairytale romance appears to have ended, fans of both stars hope the two can heal as they go their separate ways.