“While conflict is inevitable in friendship, friends also have the ability to tolerate each other’s needs and to resolve differences. As Frans de Waal writes, “Fires start, but fires go out…We know a great deal about the causes of hostile behavior in both animals and humans…Yet we know little of the way conflicts are avoided - or how, when they do occur, relationships are afterward repaired and normalized. In his wonderful book Peacemaking Among Primates, Frans de Waal makes the case that for all primates, humans included, “making peace is as natural as making war.”