From everything I've read he's been single since 2006... any romances he's had recently he's done a great job of hiding from the media... He had a fling with Rumer Willis for about a day in March...
His middle name is John.
Zachary Quinto is 34 years old (birthdate: June 2, 1977).
No, I don't even think he has a girlfriend even at the moment. But no he has never been married nor produced a Zachary Quinto Jr.