"You're no one in all of this. You're nothing. But not to me."
Was such a FANTASTIC line and everything was set up so perfectly for her to join him.
Are you kidding me? It's a fantastic line, yes, because the moment he utters it the moment you know she isn't going to join him. It's an awful thing to say to a potential love interest and shows that despite his "turn" of killing Snoke he's still the same childish and self-absorbed person we've come to know. (And I say that as someone who thinks Kylo Ren is absolutely great character; it's the type of villain he is.)