Divorce is not the worse thing that can happen to you.
I don't want to get all personal and introspective about this, so I'll just hit the high points and you can fill in the blanks.
When people get married, they make their relationship official. The two partners usually have mutually agreed upon roles. Sometimes the relationships change, sometimes they don't but the changes are mutually agreed upon.
When a marriage is broke, it's broke. If it gets fixed, there is a winner and a loser. From that point on, the balance of power is irrevocably tipped in favor of the winner. The game is over. That's no way to live, especially for the loser. I know many people whose marriages have been "saved". They are pitiful wretches, zombies of love.
Divorce is not such a bad thing. People move on, it's for the best. Sometimes they try again and remarry. Sometimes they don't. The goal is to maintain personal integrity.
People who say that marriage should be for life, at all costs are evil.