Regarding copying other's work and finding the said story

Hello ,am looking for this story where Arnav and Khushi were engaged during their childhood.

But khushi's parents die and arnav's dadi and mom maya blames khushi n terms her as bad omen n breaks the engagement.

Fast forward to present khushi is in relationship with karan Singhania and Arnav gets to know about n sends him out of town. I remember this much only pls help

Ps : I really want to know the name of this story ,someone has copied this story n posting it on Wattpad n I would like to inform the author ..

Though they have mentioned that it is not their work ,but still I feel that one should not share other's work without their permission.

The story goes like Arshi are engaged in childhood but just after their engagement khushi's family dies in a card accident and arnav's dadi and mother maya terms khushi as bad omen and breaks the engagement.

Fast forward to present khushi is adopted by her uncle and aunt garima and shashi and has a cousin named Nikhil Gupta.

She is engaged to karan Singhania and Arnav sees them both at a party and takes her home after giving her drugs.

Khushi gets to know about her engagement with Arnav which happened in the childhood and is heart broken.. and Arnav sends karan out of town so that he could convince khushi ..