1The worldview
A fight is only one of three parts: friendship, conflict, meaning
The Gottman Method of couples therapy was developed by the American psychologists John Gottman and Julie Schwartz Gottman. To get at that opening question, its starting point was observation rather than theory: Gottman, Robert Levenson and colleagues asked couples to discuss a disagreement in the lab, filmed them and carefully coded their expressions, tone and words, measured physiology such as heart rate, and then followed the couples for years to see who stayed together.[1,6,22]
The most cited finding from all that watching is that whether a relationship lasts depends not on whether there is conflict but on how it starts, how it escalates and whether it can be repaired. Four ways of communicating were especially linked with later break-up. Gottman borrowed the image of the biblical Four Horsemen of the Apocalypse, who foretell the end, and named them criticism, contempt, defensiveness and stonewalling.[3]
On the other side, more stable couples had more positive interaction day to day, and kept some humour and warmth even in a fight. In the arguments he observed, stable couples showed about five or more positive interactions for every negative one (the "5:1 ratio"; see the FAQ).[2,3,4,7,25]
The therapy is built on these observations: assess how a couple relates in detail, then help them strengthen their friendship, learn to manage conflict and build shared meaning. Those three things are the three parts of a relationship in Gottman's picture, described next. Bear in mind that most of the research is correlational. Getting from "this predicts" to "doing this will help" still needs treatment trials to show it, which comes up again under the evidence and the limits.[12,22]
So the night at the start can't be read from the fight alone. Gottman sees a relationship as three parts that hold each other up: everyday friendship, how conflict is handled, and the meaning two people build together (the life you want to live, the habits and goals you hold to). Each affects the others: a strong friendship makes repair easier in a fight; handling conflict well makes it safer to talk about what each of you really cares about. Every skill in the therapy strengthens one of these three parts.