This document provides 5 essential skills for happy relationships: frequent deep communication, openness to mistakes, accepting differences, cultivating individual interests, and having a sense of humor. It discusses listening skills like reflecting feelings to make others feel understood. Top predictors of long relationships are listed as communication, accepting mistakes, differences, individual interests, going the extra mile, and humor. The document warns of escalating disputes and provides indicators to watch out for like broken promises and criticism. It promotes understanding conflicts to stop aggression.