When it comes to relationships, Hollywood is comparable to high school. Everyone dates everyone else and when they break up, it's the hottest gossip of the day. The hot couple goes from being engaged to non-speaking terms faster then Renee Zellweger and Kenny Chesney's marriage. The new "it" couple breakup and get back together more times than Lindsay Lohan has been to rehab. Here are the most on again, off again Hollywood couples.

Kate Hudson & Owen Wilson

After rumors of Kate's infidelity to her husband, Chris Robinson, she and Owen hooked up after the filming of You, Me and Dupree in the fall of 2006. In May 2007, when they broke up, it was a tough time for Owen and he apparently attempted suicide shortly after. Recently, things have been looking up for the golden couple, and the two have been spotted together having apparently rekindled their past differences.

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