Marriage is about also making a contract with your partner! To his half, your partner maybe lacking with something else but that's your role as the partner to fill what's missing. And when a time you feel something wrong ask your partner, if you need anything else ask your partner, don't make decision on your own! Consult your partner because it will make your bond, trust, love with each other become strong!!
Some divorce are cause by pride, jealousy and being greedy.... you want something from your partner but sometimes they can't give it to you and they try to look it into another person... they don't value the respect and capabilities of each other... sometime they compete with each other who achieved more but that is not marriage all about...
So before entering vows make sure you are ready to accept your partner's ugly side, the stupid , their incompetence, and what they are.
Malachi 2:16
Marriage is a sacred Union between couples where love and commitment is the number foundation for it to work. their is a fine thin line that separates loving from loathing also in marriage and divorce. Divorce in some country is not legal. Some divorce are caused of misunderstanding and mistrust through this it can create havoc in your marriage. You must listen to each other side so that you can clear what ever what ifs you have in your mind. So before we decide to marry we should accept what ever flaws our partners have.