The strongest relationships allow both people to remain whole while resolving differences.

In a good relationship you can resolve something without either person being dismantled. Nobody has to be wrong about everything, apologize for their whole character, or come out smaller. The difference gets settled and both people are still fully themselves.

Notice whether your disagreements require someone to be diminished. If they do, that is a structural issue rather than a topical one. Aim for outcomes where both of you could describe the exchange without embarrassment.