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Celebrity Couples You Thought Would Be Together Forever

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13. Jordin Sparks & Jason Derulo

Sparks and Derulo were the picture of perfection from start to...oh wait, no, Derulo just couldn't commit.

"What happened...in a nutshell, there was a lot of tension in the relationship for a lot of different reasons,” he said on On Air with Ryan Seacrest in 2014. "Every relationship has ups and downs. There was a lot of pressures of marriage. There was a lot of arguing and stuff like that that just weighed on our relationship over time."