>>114636921I feel like fusion embodies relationships in a very broad sense. Literally any sort of way you can relate to someone, including romantic, but not limited to it.
Amethyst and Steven kinda resembles a sibling like relationship, Connie and Steven a close friendship (at least during majority of the series), Bluebird is just a temporary alliance to accomplish a short term goal, the two topazes is a like a militaristic union, and obviously ruby and sapphire are a romantic one. And theres a bunch of others, too./
It's a case by case thing of why they're fusing, really.
