Pearl, you know her, this gender less gem who freaking loves Rose Quartz.

But, there are some times where she kinda looked like she wants to leave.

So let's start the evidence.

At the first theme song, Pearl' background was simple, her sitting down, not doing other things.. But look at the world.

It may be just because she might leave later on in the story.

Also, she did try to leave the earth with Steven once, so I might be she wanted Rose's gem to be with her.

She also kinda has a hard life seeing these episodes.

Anyways, this theory is not mine, but it's pretty convincing.

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HEY GUYS! This is the only SU theory I can think of, so please comment on which theory you want me to cover!