Strictly Come Dancing sweethearts Joe Sugg and Dianne Buswell are one of the most-loved couples to have come out of the show, and after six years together, Joe revealed his glittering promise to his girlfriend if she makes the final with Chris McCausland this year Strictly Come Dancing sweethearts Joe Sugg and Dianne Buswell are one of the most-loved couples to have come out of the show, and after six years together, Joe revealed his glittering promise to his girlfriend if she makes the final with Chris McCausland this year