You have to kiss a lot of frogs before you find a prince (or princess). Even celebrities know that. Unfortunately for them, they don't get to forget about those frogs as easily as regular folks might.
With the paparazzi, the internet, and the many gossip magazines out there, their old flings will never die. But just because they won't die, doesn't mean they won't be forgotten from time to time.
Here are 50 celebrity relationships you've probably forgotten about by now.
Amy Daire contributed to a previous version of this post.
Keira Knightley and Jamie Dornan
Knightley, who was starring in "Pirates of the Caribbean" at the time, dated Dornan back in the early 2000s.
Well before the name Christian Grey had ever been thought up, Dornan was just a male model, a nobody, really, compared to the international movie star he was dating. That kind of pressure is what eventually led to their break up after two years of dating.
"There is a big pressure when you go out with someone such as Keira,"Dornan told the Daily Mirror in 2006 after they broke up. "The man is meant to be the alpha in the relationship on the money and power front, and clearly I was not. You feel like you have to be dominant in other areas and that causes problems."
Leonardo DiCaprio and Blake Lively
From May to August 2011, these two gorgeous actors couldn't get enough of each other. They were spotted all over Europe holding hands and were seen together stateside before they ended their summer of love.
These infamously private stars never went on (or off) the record about their relationship, but it's all history now anyway. By October, Lively had started a relationship with her now husband, Ryan Reynolds.
Ryan Reynolds and Alanis Morissette
It may be hard to imagine Reynolds with anyone but his current wife, Blake Lively, but well before she ever came along, he was with the talented Alanis Morissette. They started dating in 2002 and were together for two years before he popped the question in 2004.
After two years, they broke off their engagement and went their separate ways in June 2006.
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