Absolutely correct Suhani. Ya it is true that Dhruv was the Kabab mein haddi for MayUr but if you see from the S2 POV, then it was the accident due to him which brought apart not only MayUr but SaJan as well. There were chaos and confusions in the lives of the four. Though the psychotic lover was a bit messy but his act was the bang which began the onset of season 2. And Season 2 is like another feather to the cap of Sajan/MoNaya. Samrat's pain, his longing for his Chashmish, Gunjan's hatred towards fate and Samrat, their sweet Nok-Jhoks, her conflicting emotions, her love for Samrat and the simultaneous hatred for the same etc etc. And the list goes on...
But personally I liked Neil the most because during his track we got to see the insecurities of Samrat resurfacing and how he, with a little push from Gunjan, overcame them and made up his mind to marry his chashmish, out of love and not compulsion. We got to see Samrat realising that life is not all about fun and friends, it is much more than that.
Well Sheena was also no less. Her scheming motives against Gunjan finally led to some sense into the Dhakkan Samrat's head which led to his realisation.