Most fights are not about the thing you are fighting about.
Decades of observational research on couples point to the same conclusion: it is not whether you fight but how. John Gottman's work identified four patterns — criticism, contempt, defensiveness, and stonewalling — that predict relationship breakdown with unsettling accuracy, and contempt is the strongest single predictor.
The corresponding skills are learnable. A soft start-up to a complaint changes how the entire conversation goes. Repair attempts — a joke, an apology, a hand on the arm mid-argument — matter more than the argument itself. And a five-to-one ratio of positive to negative interactions is the observed marker of couples who last.
Marshall Rosenberg's nonviolent communication offers a complementary structure: observation, feeling, need, request. It sounds stilted the first few times, and then it becomes the fastest route to being understood.