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On-Again, Off-Again Celebrity Couples

9. Drew Barrymore & Justin Long

Drew Barrymore and Justin Long were hot and cold for years before finally calling it quits. The two dated in 2008 before splitting that summer, but they filmed two movies together after that (He's Just Not That into You and Going the Distance). They held hands on red carpets for a while before their romance fizzled out for good. Barrymore got engaged to a guy named Will Kopelman in early 2012.