I have found the hype around this story to be quite entertaining. Secular scholars and heterodox religious scholars trip over themselves to find evidence that supposedly upends the Bible. Yet, they are invariably embarrassed in their efforts.
For one thing, one very large thing, it is well-known that the Bible speaks of the bride of Christ. For example, in II Corinthians 11:2, the Apostle Paul describes the Church at Corinth as a bride betrothed to Christ. And in Revelation 19:6-9, the Apostle John describes a wedding feast for Christ and His bride, the glorified Church. In other words, true Christianity holds that Jesus does have a wife, but this is a metaphor for His relationship to the Church. Thus, even if the fragment is legitimate, it doesn't necessarily teach anything that orthodox Christians don't already hold.
However, once the fragment became public, evidence of its counterfeit derivation started to leak out. The Vatican and Baptist authorities quickly dismissed it, as would be expected. However, secular authorities also started to question it, and even the liberal Huffington Post. I believe all of this proves what Paul also says, in Romans 1:21-22, "For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened. Claiming to be wise, they became fools..."