Yeh hai mohabbatein is one of my favorite serial. In this serial ishita n Raman will marry becoz of Raman’s kid ruhi. Ruhi is a cute little girl. In the beginning Raman n ishita used to fight later on they both started loving each other. On the other side Raman’s first wife shagun plans against raman n ishita she want to ruin ramans life.
After leaving Raman shagun was in a relationship with ashok khanna with whom Raman was a employee. Raman’s son hates him becoz shagun tells that he is a bad person n all. Later after a point shagun realizes her mistake n became a nice person. Ishita can’t give birth to a child. shagun becomes her sarogate mother of ishitas child. Raman without informing ishita makes shagun as a sarogate mother of their child. Ishita who don’t know about this n misunderstands Raman n shagun then shagun committed suicide. And now sometimes ishita behaves like shagun every one will be shocked n they are trying to find the reason behind ishithas behaviour