Random idea
I had some thoughts about Finn and Kylo. So, Kylo Ren notices Finn at the village right? He stares him down and takes note to find out who that disobedient stormtrooper is. But as far as we know, even though Kylo Ren found out Finn's indicative he didn't act out on the knowledge a stormtrooper is a liability, right? He didn't have a chat with Phasma or Hux about Finn and his moment of disobedience in the village. Kylo Ren keeps the information for himself. Why? Here comes the tinfoil hat part: what if Kylo Ren did become a double agent but not from the start? Lets say he was seduced to the Dark Side and did a lot of bad things but realized at some point snoke is using him and wanted to leave? Maybe he decided to stay, to take advantage of his position in the 1st order to take them down from the inside. BUt what if he can't bring down snoke alone? What if it is a 2 person job? He can't go back to his family, not now, no one trusts him. Then, unexpectedly, a stormtrooper that feels the call to the Light Side. A good person in this Dark Order. A kindred spirit. So maybe he wanted to find out which stormtrooper so he could reach out? Then that guy goes on to escape with the rebel pilot and destroys everything by bringing Han Solo in this story. And takes his place, and the life he would have had if he just left n the first place. So the man he hoped to help him, makes him sink deeper in the Dark Side. So, he's the traitor. Still, Kylo Ren needs a second person and he offers to train Rey in the ways of the Force. Not the Dark side (I find that interestind, the choice of words). Sorry for the long rant, my head is full of ideas :))
