I disagree on the point that God gave us that option...he didn't. Divorce is a man made thing!
Now I think it can go both ways. In most cases divorce is a bad decision, and usually means someone needs to grow up in the relationship. If you have stopped communicating in the relationship go talk with your spouse, that is the easiest solution.
Its not always a bad decision though! If the husband or wife is being abusive and will not stop, or if they are not honoring their marriage vows and continue not to care then it would be an option. Again though a man made option.
Just like it is a "man made option" to be abusive or cheat on your spouse.