Every couple argues. This is not a problem. It is a fact. The belief that healthy relationships are conflict-free is one of the most damaging myths in popular culture about love. Research by Dr. John Gottman -- who spent four decades studying couples -- found that the presence of conflict in a relationship is not what predicts whether a couple will stay together. What predicts it is how they handle the conflict when it arrives. Some couples fight loudly and repair quickly. Ot