If you don't know how to fight correctly with your girlfriend, then your chances of breaking up will be considerably increased. Fighting is the worst part of relationships BUT it's also an essential part. Fighting can mean that you are challenging one another and that you are a man that will not walked all over by a woman because you've become a “YES MAN”.
If you're going to fight, then you have to learn to handle a fight with your girlfriend. This will ensure you grow from your fights, rather than damage the relationship.
Watch this video that I did for Askmen.com on how to handle a fight with your girlfriend.