Kurt is at Dalton, Blaine finds Kurt's notebook which is filled with amazing suggestions for the Warblers and other stuff and Blaine is astonished and he asks Kurt why he hasn't been sharing the ideas. Kurt gets really angry because he has been keeping quiet so that he doesn't stand out like Blaine told him. I don't remember how it ended. I think it was either pre-klaine or the beginnings of klaine.
I am fairly sure there was some relationship angst in amongst all of the other turbulent emotions.
I appreciate all of your help!