The pair ended their marriage in 2008 following reports that Cook had been unfaithful.
The supermodel admitted to Prevention magazine that laughing helped her to get though such a difficult time.
"You've got to find a way to keep laughing, even if it's black humor, and my friends are very good at that," she said. "Some people think of happiness as a luxury, but it's a necessity, and you need to make space for it in your life."
Brinkley further suggested that she is not actively pursuing romantic relationships at the present time.
She explained: "Most of the time, I've got my kids with me, so I'm not as prone to meeting people… And then, you never really know if someone is talking to you because you're a celebrity. It's not my number one priority."
Christie Brinkley Humor got me Through Divorce
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