Break me like a promise. (One Direction FanFiction)

Harry Styles, the player.
Amelia Horan, she tought that they are friends but for her they are more than this.
But he knows the truth, her feelings about him, and he doesn't even care.
But what will happen when someone 'new' try to get her? Will it be difficult for her to forget 'him'? Will she try to change her life. But what will happen if Harry regret all of this?