It's likely that the wedding at Cana was Jesus' wedding. He did after all pour the wine, and that, in Jewish weddings is a task usually performed by the groom. Also, it was here he (supposedly) turned the water into wine.

The notion of either gayness or bisexuality comes from the Gnostic Bible (I think the Book of Thomas). There is no indication in the Old or New Testaments that he was celibate (that I'm aware of).