To me, divorce isn't a bad thing. Though I do believe that children kind of need the presence of two parent figures in their lives at all times, the fact remains that people aren't perfect and marriage can be pretty socially suffocating. For those saying that it's a sin if they divorce just because they grow weary of one another, see a movie called War of The Roses (excellent film). They basically end up killing each other because the wife wanted out and the husband was clinging on to her.
As a side note: Prenuptial agreements;now there's a sin. I pity Micheal Douglass if he cheats on Catherine Zeta-Jones...I truly do.