I like keeping the first scene with Kylo and Papa Palpatine to:
“You’ll die first.”
“I’ve died before. Kill me, and my spirit will pass into you.”
It registers as a threat, and makes sense why Kylo would back down somewhat and demand he answer his previous comment about giving him “so much more.”
Then, when Rey comforts him he says “You want to kill me. That is what I want… You will be Empress. We will be one.”