The pair have given formal notice at the register office in Dereham, Norfolk, and are set to get hitched in the next year.
While Elliott and Stephen appear to have been quietly dating for a while, we know very little about the mystery man.
A quick perusal of his Twitter page shows he’s accompanied Stephen to a number of events, including ‘The Hobbit’ premiere, and also enjoyed lavish nights out in the company of the ‘Q.I’ presenter’s A-list friends.
But what else is there to know? Check out these 9 facts in 90 seconds…