It is from the old episodes,
Lets start it from here that one fine day after returning from Palanpur Kashish realised that she loves Sujal, Then for few episodes they shown the wonderful scenes between Kashish and Sujal, which became the talk of the town. Then with the small misunderstanding between them, everything was finished.
Then Kashish decided to marry Piyush ,childhood freind of Sujal. Piyush knowing the fact that Sujal and Kashish loves each other he married Kashish. She even accepted Piyush and supported him when her first love was taking revenge.
Then Piyush died and Kashish thought that Sujal has killed him. She wanted to take revenge from her first love again and even to fulfill her dreams she married him, sent him to jail.and what not. Then realising the fact that he is not a killer all of a sudden .soya pyaar jaag utha. After that she completely forgotten Piyush .Even she was never shown talking to Piyushs Photograph.
Then after Sujals death she said all those lovely ,emotional dialogues that she can feel Sujals existence with his breath, Sujal ka ehsaas har dam uske saath hai, woh Sujal ko choo kar pahchaan sakti hai, etc etc Then when she touched the Dead body , she accepted it as Sujals body. Chalo tab Dukh ke baadal chaa gaye the to nahiin pahchaan saki.
Now what happened to her love when Raghu is now so close to her, and real sujal in the disguise of Tushaar was so close to her but she has not felt his presence.Was it a true love or just for the name sake.
Kya Kashish shuru se Piyush Aur Sujal ke jajbaaton se khelti rahi ya yehi sacche pyaar ki paribhasha hai.