Can't we all just get along?
Here's why I enjoyed it: Star Wars, light sabers, pew pew pew lasers, space ships, little robots, big robots, Han f**king Solo!
*mic drop*
Well, see, I got the impression that both Han and Leia knew as well and they were hiding it from her.
My theory, patchy as it is, is this: Rey was also a student at Luke's Jedi school thing alongside Kylo Ren. Snoke, was an older pupil there as well. He fell to the dark side, kidnapped Kylo...