Favorite couple dynamic?

What’s your favorite couple dynamic or relationship to read about?
Lately for me, I’ve been a real sucker for the black cat that is cold at first (and even sometimes borderline hates or is annoyed with the golden retriever, sorta like a enemies to lovers trope) but eventually warms up and becomes clingy towards their golden retriever partner. And the golden retriever is just extremely understandable of the black cats behavior and has a really level head/temper.