Help plzzzz

Hey guys, new to this forum..

Previously I used to watch yrkkh not so regularly but during this lockdown.. I started watching it from the episode where kartik and naira met.. 

But couldn't quite figure out FROM WHEN DID KARTIK AND NAIRA FELL IN LOVE WITH EACH OTHER?.. As per my observation kartik falls in love first and is it because of her dance? 

It would be of great help if anyone answers this please