I just hope that the main guy doesn't turn out to be a control freak. I'm sick from this stupid roles.…
I think he will change since it's hinted in episode 2. He is somehow confused by Lei Xin Yu's actions and touched too and it kind of seems he is played by her instead when it's supposed to be him that is trying to take revenge. But I think he will not change so suddenly and he will still try to take revenge in few more episodes.
In episode 2 that phone and dancing scene...he is falling to his own trap. Lei Xin Yu understands him and makes him touched and guilty. Can't wait to see how he falls for her!
http://www.viki.com/videos/1113713v-behind-your-smile-episode-2
this is just the short version, the full version is not released yet.
Hope it's true, although it would be better if it air earlier...