An alert reader supplies this link:

The rumors are true: Albus Dumbledore, master wizard and Headmaster of Hogwarts, is gay. J.K. Rowling, author of the mega-selling fantasy series that ended last summer, outed the beloved character Friday night while appearing before a full house at Carnegie Hall.
After reading briefly from the final book, "Harry Potter and the Deathly Hallows," she took questions from audience members.

She was asked by one young fan whether Dumbledore finds "true love."

"Dumbledore is gay," the author responded to gasps and applause.

One more reason for the Christianists to hate, I imagine. But as our reader remarks:

That's why they called him the "Headmaster"!

Try the veal!