Marc Anthony Denies Cheating as Cause for Jennifer Lopez Split: "It Wasn't Shocking"

In his first interview since his split from Jennifer Lopez after seven years of marriage, Marc Anthony is defending himself against reports that the cause of their breakup was because he cheated.

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It has been six weeks since Marc and J.Lo announced they're getting divorced, and now Marc is ready to speak out on the decision. Mainly, he's defending himself against the numerous reports that he was having an affair.

"It was a flight attendant, it was the pilot — I heard it was this guy sitting next to me in a rehab in Houston. I've heard it all," Marc told ABC News about the various affair reports he's heard.

Marc, however, can understand somewhat how those reports came about.

"People are trying to peg it on things because it was so shocking," he said. "It was like, It must have been something. … It wasn't something sensationalistic."

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Their marriage just wasn't working anymore.

"It was a realization on both our parts. … It wasn't shocking," Marc explained. "These things happen."

So did he want to get divorced?

"It's a decision that we made jointly," he said. "And that's how I'll answer that."

Watch Nightline tonight at 11:35 p.m. ET on ABC for the full interview!

But catch a video clip of it over at ABCnews.com now!