I found a very interesting article which in a rather sophisticated way argues about what I have felt for a very long time: namely, that marriage is something which exists on its own, like a thing or a being and to dissolve it is akin to committing a murder. Personally I have always thought about marriage as an institution, but I like the author's comparisons. As I'm getting older, I find myself rather agreeing with the Catholic point of view that a marriage can't be dissolved, only annulled.
The way most people, even those calling themselves Christians view marriage nowadays, treating it as something disposable at a whim of either spouse is downright scandalous, imo. I've read an article recently about a woman in UK who had left her husband and children for her African lover. People in comments wrote how she was a horrible mother but hardly a word about her betraying her husband. They even stated they could understand it!
The traditional Christian point of view is that the relationship between the husband and the wife is primary and more important than that of parents and children, after all, the kids will grow older and leave, but you are supposed to stay with your spouse till Death do us part! That's why the man wasn't allowed to divorce his wife if she couldn't have children or couldn't produce a male heir for the family. By allowing easy divorce we sacrificed the high position of a Christian wife for that of a concubine who could be kicked out for any reason. Of course, the same is true about women divorcing their husbands left and right and remarrying, something which Christian Bible calls adultery.
I'm not talking about really hard cases here and speaking of policy I'd allow divorce for certain transgressions, yet my point stands: marriage is the first institution divinely ordained and the way we treat it will bring judgement on our whole society.