Best of 2010

It's a Bust! The Year's Biggest Splits

Scarlett Johansson & Ryan Reynolds! Zac Efron & Vanessa Hudgens! This year brought dramatic changes to long-standing couples

ZAC & VANESSA

"Right off the bat, we had a connection, I think everybody could see it," Vanessa Hudgens told Glamour magazine earlier this year of her and boyfriend Zac Efron's longstanding romance. But that love connection wasn't meant to last: In December, the young couple, who met in 2006 while filming the High School Musical films, split. But the breakup was on good terms, according to a friend of the couple's. "They are 100 percent still good friends," says a source.