Maybe this is just me being depressed again, but I can't stop thinking about my theory that Pink ordered her original Pearl to stop following orders bc the power dynamic between them made her Pearl unhappy and they both wanted to be friends. It was an invalid order, however, and it caused permanent damage to her eye. Then her Pearl was deemed broken and was taken away, leaving Pink devastated and alone. She was eventually given a new Pearl, who she could have customized to be just like the old one, a Pearl she could be more careful with, but she didn't want a new Pearl. She wanted her best, her only, friend back. She rejected her new Pearl, leaving her on the default settings. Later, she was given a Spinel to entertain her, to fill the void, but:
Spinel doesn't actually make her happy. She made her smile and laugh, but there's more to happiness than what you see on the outside. Just like her new Pearl, she saw Spinel as just another failed attempt to replace her real friend. Even on Earth, when she actively tries to befriend her new Pearl, to encourage her to provide her own opinion, only to get the same sort of brainwashed response you'd get from any Pearl:
"I could imagine it, if you would like me to, my Diamond!"
I'm convinced what happened to Pink Pearl is a key element in why Pink was the way she was, why she struggled to be close and honest with other people, why she had a tendency to isolate herself, why she wanted to keep the humans out. She lost someone she cared deeply for because of her own actions. It was even worse after the war, when she lost countless gems she also came to care for, also a result of her own actions. Human lives are so short, while hers is so...infinite.
"You surround yourself with inferior lifeforms so you can be best of the worst." Was this a dig at Pink's involvement with the Crystal Gems during the war, or something more personal. I really don't think it was a coincidence that White sent Pink's original Pearl to greet "her."
"What are doing here, and what are you doing to me?!"
Why did she react like this to Greg's song? This line suggests that she has some power over him that he can't resist. She already cares about him, she wouldn't be wearing that shirt otherwise, and hearing someone she cares about almost lamenting the control she has over them, it must have stirred something in her...until...
"You're everything I want!"
It's less what he says and more the way he says it. He wants to be with her, not because she forced him to or he's naturally compelled to. It's his own choice. He chose her. Likewise, with Pearl, they instantly became closer when Pearl began to act spontaneously, come up with her own ideas, imagine things...like herself, running away from her purpose, living on Earth, meeting a Rose Quartz and falling in love...
"Please, don't ever stop!"
This. This is something that Pink, that Rose, desperately wanted.
I don't remember where i was going with this, but it was keeping me up. It's almost 3 am and I can't stop thinking about what motivated Pink, deep down.