Originally posted by: TeluguAmmayi
my friend who is watching the original told me.
Reva doubts Eshaan and Katha and confronts him. He gets hurt and he goes and sleeps with some other girl.
Eshaan character tells it to that girl when he is drunk and she tells it to everyone. That is how the night secret is revealed.
After it is revealed katha leaves with her son. Viaan is depressed and he sleeps with some other woman.
I think once truth about that night will be out, shehrazat (katha) thinks that onur(viaan) has broken the promise and told everything to Karem(ehsan) while the truth is that karem somehow finds on his own. But sehrazat doesn't believe onur and they get divorced officially. Only after that onur gets into depression and had ONS with some random girl. So technically he doesn't cheat sehrazat.
After few months sehrazat meets another man and decide to marry him. But she comes to know the whole truth. She goes back to onur but he turns her down saying his love was always unconditional but her love has always come with conditions and trust issues so they better stay seperate.
But kaan (aarav) comes to onur day before wedding and pleads him to stop sehrazat as he only considers onur as his father, he is not willing to except any other man in his mom's life. Onur thinks over and realise that together he and sehrazat has built a family and no matter what, they have never stopped loving each other. So he takes kids with him to wedding venue and once sehrazat looks at them she too realise that she will complete only with onur and her family so she comes back to onur and they get married again.
I have not watched whole episodes but only few last ones. This is what i understood from them. I may be wrong.