[GreenLantern]

That crossed my mind as well, it was when Han had the line about "Snoke is just using you, then he will throw you away." What if there is some truth to that? About the throwing away part? Then Ren gets wise to it, he finally meets Snoke in person and is able to detect that he is not a force user, or not nearly as strong as he made himself out to be. Ren would be disgusted that he had bee 'training' under someone so inferior and just kill him on the spot. Then we find out that the real villain was twisting Ren THROUGH Snoke and we have our act 3 movie.. Ren isn't on the light side, but he is frustrated and lost and confused. He's angry he became a puppet, he's angry that they made him kill his Father and Uncle? to prove his worth to them, just so they could manipulate his power. This isn't what his Grandfather wanted, this isn't the vision that he set out to fulfill from the start. Vader would have never served these pathetic excuses for force users, he would not have tolerated this at all. So neither should Ren. He never fully comes back to the light, but he does help take down the big bad villain, making us believe that he is doing it because it is the 'right' thing to do, but really he just plans to seize the power all for his own. In the end he reveals this and all hope looks lost, until 'Rey' Kenobi destroys the last of the Skywalker blood line. The bloodline her Grandfather failed to keep from the dark side all those years ago.