A breakdown in the lines of communication is one of the biggest predictors of divorce. Couples who don’t communicate well cannot resolve issues together and tend to suffer more misunderstandings and hurt feelings than those who have learned how to resolve conflict respectfully. Good communication is physical as well as verbal, and it is required for almost everything in a good relationship, including sex, a couple’s finances, whether or not to have children, areas of disagreement, and other sensitive topics unhappy couples deem too dangerous to discuss.