How the story ends..

Just when I thought i knew who he was, he switched to the villain and once again, covering me in the world of illusions and confusions.
No matter how long one has lived, they may never uncover all mysteries in themselves and their hearts.
Since you’ve betrayed me, I don’t know who you are right now.
Just when I thought I had understood, the world suddenly changed.
Leaving me confused with the changed man he now was.
Just when you thought you got me figured out, I will lay another riddle for you to- hopefully, never shall solve.
“One moment you fail on purpose and the next you try your hardest to make amends?
I seriously don’t get you!”