Why Pooja is targeted always?

Everyone else is targeting Pooja as she is the key which can help them reach Surbhi. Naren won't get affected by anyone else. It was pooja who convinced him for this marriage and it is only Pooja who can be instrumental in the opposite too. Her marriage with Anand will not help the cause of villains. Only if she is sad or something sad happens to her, Naren will leave everything behind and come to her which gives rest of the people a golden chance to get their sons married to Surbhi. But as I said before, there is no harm of Pooja and Naren in their planning and plotting, since ultimately they are uniting two people who love each other and are destined to be together. Whereas little do they know, marriage with Surbhi doesn't really mean 'khazane ki chaabi' , infact it means losing the 'khazane ki chaabi' along with their son. So people doing all planning and plotting, they are deciding their own punishment.