Just a collaboration

This is a 1d fanfic in which Bollywood and Hollywood stars do a collaboration together in this 1d is as popular as it is in reality and there is a girl named Pooja who is the best female artist of Bollywood and they do a collaboration together more detail about collaboration will be in the chapters the main story is all the boys and Pooja becomes very good friends one of them falls in love with her but Pooja is already so heartbroken that she can never love again so what will happen will the boys be able to know her past and help her out or will their relationship will remain just a professional collaboration