Feud between The Collective and One Direction

Sienna Keating-Horan is Ronan Keatings Niece and Niall Horans sister but she doesn't know it, she finds it funny that she has the same last name as him and kinda looks the same but figures she would have been told. One day she gets picked up from school by Niall and His mum, Sienna finds out the her mum, step-Dad and brother had passed away and she had to move to her dads and step- mums.. To get things of her mind Ronan takes her to England while he has to do some stuff or X-Factor Australia, she meets a lovely gentleman who has been put into Ronan's supergroup the collective, what happens when they start dating and The collective end up being massive in Australia and some of One directions fan base fades due to this hot new boy band, Niall's jealous so forces her to break up with her lover boy after they have a fight... Will sienna listen or will she stay with her lover boy?