While that is an interesting thought to consider, that Kylo is Rey’s teacher, I’m not sold on why she at one point wants to kill Kylo and in another instance wants to save Kylo. Like really, I’m asking why? What is the motivation to go through all this effort? What makes her change her mind so easily throughout the movie?
“You are a MONSTER!”
“Yes, I am!”
"…"
“Okay let’s take Snoke out together like besties mmkay?”

Luke wanting to redeem Vader makes sense because there’s a personal, family, connection. Rey and Kylo have to be opposites for a reason, and Rey has to want to save Kylo for a reason. I see nothing noteworthy as to why without it being a boring good vs evil tale about saving friends.