I had been a dog person for as long as I can remember. There was a cat sometime in my early teens or something, but I don't even remember where we buried it after it died.
Then, everything changed when the Fire Nation attacked.
Cats—and I can't stress this enough—are selfish bastards. This makes them immediately relatable. They will naturally gravitate towards the person who is at the top of the domestic power hierarchy.
The cat gives you their attention when they feel like it: when they are hungry, scared or otherwise needy. You can't just waltz in and cuddle their royal fluff whenever you feel like it. Well, you can but it feels wrong.
You could lure them in with treats, but you feel like just giving them the treats and walking away. Cats condition you on how to love them.
And basically that's what cats have taught me: that the love shouldn't be about you, it should be about the person that you are loving. They've taught me to be more considerate and look out for cues, and instilled in me a megalomaniacal yearning for world domination. ¯\_(ツ)_/¯