Torn between two (a Niall Horan & Louis Tomlinson fanfic)

Anna and Niall are best friends. The inseparable kind. They are alike in so many ways. Both have a shade of blue eyes, blonde hair, close to the same height, same interests/dislikes, appetite, and big, caring soul. They could have been long lost twins. Separated at birth. But they aren't. They admit their feelings they have for the other, but they are torn apart. Anna leaving Niall, Niall's promise lingering in the air. Will he keep it ? She soon meets a boy, Louis, who is her neighbour. She's unsure of him at the very first, but grows to be fond of him. But a person from her past shows up and forces her to chose between the two. Who will she chose ? ____ or ____ ? Read to find out.