I hate fruits that I don't buy which is why I don't buy them.Maybe they prefer other characters over the MC- not exactly hating.
It's like when you go to a grocery store, you are given multiple fruits and vegetables to choose from, just because you choose one over the other doesn't mean you necessarily hate the others- it's preference.
is that a good analogy?
You might even be interested in the lore or themes of the story rather than the characters themselves. Parasyte, FMA, and Tokyo Ghoul are good examples of this. (for me at least)