Christ has always had a bride. The very nature of the phrase in question can easily reference Christ's "bride" or even be seen as an appeal to the "wife" of Jehovah... Israel.
It's even more simple than that. There have always been traditions somewhere in Christendom that Christ was married, Christ had a twin brother, etc. etc. etc. The very worst case scenario is that one Coptic Christian said Jesus had a wife.
It's all a tempest in a teapot, anyway. The people who trumpet these discoveries (the fake Jesus tomb, the Gospel of Judas, ad nauseam) don't know what's in the New Testament, don't care what's in the New Testament, haven't got a clue how we got the Old Testament, don't believe the New Testament, sure as anything won't obey the New Testament . . . but dig up a previously unknown scrap of paper, the size of a credit card, with eight lines of writing and a dodgy provenance, and that puts the words "My wife" in Jesus' mouth? Look out Mabel! Everything you knew was wrong!
Give it a few months, and Mrs. Jesus will be a laughable memory. Sic transit gloria mundi.