Hey guys,
Do you remember that scene where Ranbir broke Kanya ayan's engagement and insulted her family in front of the media? Shantu appears and tells that "Too bahut Pachayega". At that time Kanya told him that she wishes he gets a girl who teaches him how to love. and then Ranbir said that "Duniya ki har ek ladki ke liye mera dil hamesha bandh hai". and he said he hates people who love, and he hates her more than anything.
I think now when Ranbir realizes his love for Kanya he might not tell her anything but will instead repent for all that he had done to her. He might start feeling guilty and wont be able handle himself. He might probably start hating himself now and feel bitter about all that he had to done to kanya. We might probably see the kasturi track in KIT.