Steven Universe, Season 5

Pearl:
Is everything alright, my Diamond? You seem troubled.

Rose:
All this life that's been growing wild here on Earth…none of it will survive my invasion. We're not creating life from nothing. We're taking life, and leaving nothing behind.

Pearl:
Forgive me, my Diamond. I shouldn't have brought you to such a place.

Rose:
No. I needed to see this.

[scene shifts back to the fountain]

Steven:
So she did want to protect Earth. She didn't realize what the colony was doing to the planet.

Sapphire:
So what?! She suddenly started to care about Earth? Why did she have to rope us into all this? Why couldn't she just stop the colonization herself?

Pearl:
She tried. When she told the other Diamonds she didn't want to go through with the colony, they told her to finish what she started. When she told the other Diamonds she wanted to preserve life on Earth, they created the zoo and threw a handful of humans in. She did everything she could as Pink Diamond. But her status meant nothing to Blue and Yellow. So she decided to make a stand, as someone they couldn't ignore. She was going to scare every Gem off the planet. But everything changed when she saw…your fusion.