Name of movie that's recently been in tudou ads

[kvetch]

Never managed to get the name of it and now it seems to have disappeared....

Anyway. What I remember is;

Girl in school uniform:"dui. wo feichang bu xihuan ni"

Guy in exasperated high pitched voice "wo ye bu xihuan ni!"

There's also a hilarious looking dude with longish flicky hair and stubble. Was swaying and clapping with some other guy at some point. 

Seems to be a romcom from the looks of it.