Guess he's not losing any sleep over it!

Chris Martin made his way through LAX yesterday, and after politely signing autographs for fans, he was asked if he's concerned about the rumors wife Gwyneth Paltrow cheated on him with entertainment lawyer Kevin Yorn.

The Coldplay front man didn't seem bothered by the question at all, and even smiled and waved to photographers before saying simply, "Nice to meet you."

He's such a gracious gentleman that we hope the Goop queen isn't deceiving him!