Matthew 5:28
"But I say unto you, That whosoever looketh on a woman to lust after her hath committed adultery with her already in his heart." Is this grounds for divorce?
Secondly, who is the bride of Christ? The common school of thought is that the church is the bride and Ephesians 5 seems to support this. However, Revelation 21:9 plainly says Jerusalem is the Lamb's wife. Isaiah 62 also implies this.
