Chris Martin: Gwyneth is my only serious relationship

Chris Martin isn't about to take Gwyneth Paltrow for granted.

The 34-year-old feels really lucky to be married to the GOOP Goddess, and not just because she's the only serious romance he's ever had.

PHOTOS: Gwyneth through the years

In an interview with "CBS Sunday Morning," Anthony Mason asked Martin if it was true that he'd only had "one serious relationship."

"[That's] right," the Coldplay frontman said. "I'm in it." 

When Mason pointed out that Martin's lack of serious girlfriends in the past was "pretty unusual" and told him he'd made "quite a leap," the musician quipped: "It's a big leap? What, from being a loser, to going out with an Oscar winner?"

VIDEO: Gwyneth says she's "a lush!"

He laughingly continued: "It's a giant leap. Let's face it: it's like winning the lottery."

Martin and Paltrow, who said "I do" in 2003, are parents to Moses, 5, and Apple, 7. 

PHOTOS: Gwyneth's surprise BFFs

So how has being a father changed Martin's professional life? "It's made it more focused," he said. "And you have a purpose. I like what it does. Just the idea of having to work hard so your kids are okay."

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