We are forgetting one very important scene.
THE FIRST SCENE OF RAGHAV AND KALPANA AFTER LEAP..
When Kalpana on her b'day night is talking to the building and then she turns around, crosses the road and we get to see 5 seconds of raghav watching kalpi.
That's the most intense moment. i had goosebumps all over.
It showed their entire relationship. that no matter what, raghav will always guard kalpi, like an angel. like her own personal, at every beck and call, angel. :)