Wel vibha, even if gunjan and vihan wil end up together, mayank wil stil be there, he wil be paired up by charu and cvs wil show 3 stories at a time 1. Mayank pissed off from charu and unhappy 2. Gunjan and vihan love-hate relation 3. Rachnas struggle for getting rajivs love. So i think story story wil divide in three parts and all 6 of them wil have their own struggle. But u can say that the main pairs are rachna rajiv and gunjan vihan whereas mayank charu wil be a bit sidelined.