>>116568520Because her whole characterization is to be the typical action girl, learns how to fight and stop being a weak normal human girl, and wants to charge into battle. Normally that would be fine and an interesting thing, but the issue is she's in Steven Universe and tied to said character.
Steven is anathema to her role, he would rather no one fight at all and talk things out, and due to his Diamond status and powers he can force them to do so instead of fighting, thus denying her role she wanted.
