Sophia Bush opens up about 5-month marriage to Chad Michael Murray

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Sophia Bush is finally talking about her headline-grabbing five-month marriage to her “One Tree Hill” co-star Chad Michael Murray.

Never mentioning her ex-husband by name, she muses on their short-term romance after years of keeping quiet on the subject. The actors were married in 2005.

"In my 20s, when I was starting out my career as an actor, I wasn’t looking for a relationship, but one found me and became serious, even though I hadn’t planned to settle down until my 30s. But when the person you’re with asks you to marry him, you think: 'This must be happening because it’s supposed to,'' she revealed in an essay penned for Cosmopolitan.

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She explained why she's kept quiet about her whirlwind marriage and divorce.

“I refuse to let that one relationship define me, which is why I’ve done my best to avoid discussing it for 10 years.

The reality is that, yes, it was a massive event in my life. And the trauma of it was amplified by how public it became, which was incredibly foreign and bizarre to a girl who’d been just another college kid 24 months before her life blew up.”

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With a bevy of boyfriends in her past, Bush, 34, offers the advice that ultimately relationships are meant to “serve a specific purpose at a certain point in time, for a myriad of reasons,” she writes.

“Some are meant to heal you, some are meant to teach you how to build yourself up, and some are meant to show you how to trust your own intuition.”