[@21308]

Because Pearl's don't stand up for themselves. They probably don't speak out and are just used as servants or as combat practice. They are made to be quiet and followers. This is why she said to Garnet that she was just a Pearl and that she wasn't strong. That she needed someone to give her orders or to serve. That is why she likes being fused with Garnet because their relationship is special plus they are strong and confident, Pearl likes feeling that way.

It took Garnet telling her that she had changed. That she really was different and strong. That she didn't need someone to order her around