Harry Styles?!?!!?

Darcy Styles lives with her single mother, Ariana Grande, in Miami, Florida in the USA. Ariana never notified Darcy's father, Harry Styles, that he had ever had a child. Ariana chose to let Darcy have her fathers last name when she was born because Darcy was a memory of her relationship with Harry. Darcy is a teenager and still dosent know who her father is, all she knows his last name.Her mother refuses to tell her what happened between her and Darcy's father before she was born. Darcy just knows that her mother didn't know she was pregnant before she left him. When Darcy turns 18, and her mother tells her where her father is and she goes after him, how will he react to seeing his daughter that he has yet to know of? Is there still a spark between Hariana? (Harry and Ariana= Hariana)