When asked by The Associated Press if there was a wedding date in his future, Seacrest casually responded: "Are you getting married?"
Seacrest and Hough have been together since the spring of 2010.
After a few playful rounds of "Are you?" banter on the subject, he decided to call it a day.
Seacrest made the comments Friday while promoting "Idol Across America," a relay of the "American Idol" microphone across the country, taking a page from the Olympic torch relay.
As for the prospect of the microphone making it in one piece, Seacrest says if not, "I'm sure there's one in a holster standing by if it breaks."