err i dont think thats it you see gilda had a rough child hood and had to fight for everything she got so its her parents falt she was like this and when rainbow dashes mom died in a twister she met gilda and gilda did everything for her and when rainbow dash moved to ponyvill she had to leave gilda and gilda became so upset she became a jerk with that thought her only friend was gone and with her parents punching her for crying so she got messed up and in a few years she comes back and trys to change and when she sees pinkie she dosnt like her vary much so rainbow dash gets the wrong idea and dosnt let gilda explain