I think the family line works for Leia.
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Leia tells her she is family.
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Palpatine tells her she is family.
Rey has to decide if she chooses light or dark.
Palpatine’s line in the movie:
“They don’t have long. No one is coming to help them. And you are the one who led them here. Strike me down. Take the throne. Reign over the new Empire, and the fleet will be yours. Only you have the power to save them. Refuse, and your new family… dies.”