"Asad becomes guilty conscious after realizing that he misjudged Zoya. Meanwhile, Prashant dies before telling Aarti and Yash about Ansh. Both the couples try to solve each other's problems."
So Zoya tells asad about Mariyam and he is guilty. :P
Now the whole crying for Zoya thing makes sense. ;)
This is just something I read. I hope it's not very useless. :| Sorry if it is. :)