Ryan Reynolds and Scarlett Johansson, who tied the knot after a year of dating and got married in 2008, announced their separation in Dec, 2010. Hannah Montana star Miley Cyrus and Jonas Brothers teen idol Nick Jonas started dating in June 2006 and soon happily parted ways leaving each other to pursue their own interests. Taylor Swift and Joe Jonas were in a small time relationship which just lasted from July to October 2008. Actress Tara Reid and television host Carson Daly were a household name in Hollywood – they dated each other for just a year and broke off their engagement in June 2001. Jennifer Lopez and Ben Affleck started dating in 2002 and got engaged in November 2002 however within 18 months the relationship came to an end when love fizzled out. There are many other celebrities whose relationship came off in a similar way.
Ryan Reynolds and Scarlett Johansson
Miley Cyrus and Nick Jonas
Taylor Swift and Joe Jonas
Actress Tara Reid and Carson Daly
Jennifer Lopez and Ben Affleck