Princess Diana’s former butler, Paul Burrell, revealed on Juanuary 15, 2008 at the inquest into her death that her mother had called her a “whore” for dating Muslim men.”She called the princess a whore and she said that she was messing around with ‘effing Muslim men’ and she was disgraceful and said some very nasty things,” he told the inquest, referring to Diana’s mother Frances Shand Kydd, who died in 2004.

Burrell also said that Diana did not consider Fayed as “the one” she would marry and was still yearning for a former Pakistani boyfriend Dr. Hasnat Khan she had planned to wed.

Muslim men are allowed to wed women of the Book, howerver, Muslim women cannot marry men of Book according to the Quran.

This day are (all) things good and pure made lawful unto you. The food of the People of the Book is lawful unto you and yours is lawful unto them. (Lawful unto you in marriage) are (not only) chaste women who are believers, but chaste women among the People of the Book, revealed before your time,- when ye give them their due dowers, and desire chastity, not lewdness, nor secret intrigues if any one rejects faith, fruitless is his work, and in the Hereafter he will be in the ranks of those who have lost (all spiritual good).  Quran 5:5. 

I think that Muslim men living in Europe or North America should avoid to date or marry  non-Muslim women to become role models for Muslim sisters. How can Muslim men stop Muslim sisters dating or marrying non Muslims if they themselves do that?  

Source