Guide
The same fight
Why a pair keeps having one argument, read through synastry rather than Sun signs.
The argument that changes clothes
Most pairs have one recurring fight. It appears through money, weekends, or an unanswered message. The subject changes, but the sequence often stays the same. One person pushes while the other holds. One goes quiet while the other reads silence as a verdict.
Reading one chart against another can name that sequence. It cannot decide who is right. It shows where pressure repeats, so the pattern stops arriving as a surprise.
The contacts that recur
Mars pressing Saturn often creates the push and hold. One person acts now, while the other wants it done properly. Mercury under pressure can show two minds reaching the same answer by different roads. Mars pressing the Moon can bring a quick reaction to a tender spot.
The sequence matters more than its label. Name one person's speed and the other's caution before the subject takes over.
What the chart does not decide
None of this is fate. A recurring contact describes a tendency under pressure, and most of a relationship is not under pressure. Aster writes the shape, and where it can, the way through. What you do with an evening is still yours.