I also feel like if you believe in divorce, then you do not completely agree with the idea of marriage. Therefore, you should not get married if you are not going to marry "for better or worse, for richer or poor, in sickness and health, etc."
What's considered "for worse" in a marriage is relative and different for everyone. You must decide for yourself what you absolutely cannot and will not put up with in a life long commitment with someone.
For example: If cheating is one of your deal breakers, and if he cheated on you before you get married or if he has the potential to cheat, you should not get married to that man. Now if you are a woman that is strong enough to forgive and reconcile with a cheating partner, then marriage can work for you.