BLUE'S Duncan James is to marry the girl who inspired the band's No1 album, Guilty. Lovestruck Duncan, 25, has given Anya Lahiri, 22, a huge diamond engagement ring. Last night a friend said: "Duncan and Anya couldn't be happier. They may have had their ups and downs in the past but they're blissful now." The couple first started dating in December 2001, but split up three months later. Last summer they rekindled their romance. Heart-throb Duncan said at the time: "You know when you meet someone and you just know? Well, Anya's the only girl I've had that with." Lyrics on the album include the line: "If loving you with all my heart's a crime, then I'm guilty." 09.06.2004 BLUE’S DUNCAN JAMES rubbished claims that he had proposed to ANYA LAHIRI. He told me: “I’m not engaged. I’m happy the way things are and don’t see the need to get married.” Thank goodness