This is roughly how I envision it was originally written to be like:
“Rey….wherever you are…You are hard to find.
“You are hard to get rid of.”
“I pushed you in the desert because I needed to see it…I needed you to see it…who you are. We are more similar than you’d like to admit…"
“You’re lying.”
“I’ve never lied to you… your parents did get rid of you. As mine did to me.”
“Don’t!”
“That much darkness in a child - it’s enough to scare anyone.”
“I don’t want this!”
“We hated our parents for it.”
“No!”
“Luke betrayed me… the same way your friends will for you.”
(Brief vision of Kylo’s TLJ backstory and possibly Rey’s friends being hurt)
“The only person who understands you is me.”
“Stop talking.”
(Cutaway to heroes capture)
“Your parents were found by one of the Emperor’s agents. He wanted to know where you were… but they were too drunk to remember.”
(Cut vision of Rey’s parents getting killed.)
“So that’s where you are. You know why the Emperor’s always wanted you, Rey. I’ll come tell you.”
…
“Why did the Emperor come for me? Tell me.”
“He wanted to bring us together, Rey. We are a dyad in the Force. Two, that are one. Unstoppable.”
“You are drawn to the dark, and I to the light. The Sith rule of two was meant to fulfill an ancient prophecy - one that would see the dyad rule the galaxy. We’ll kill him, together, and take the throne.”
(Removes his helmet)
“You know what you need to do. You know.”
“I know.”