Once upon a broken heart. Nate& Catherine have known each other since they were 5 Catherine, fell in love with Greyson for 8 years. Catherine and Greyson known each other since they were 5 too. Catherine was fine when Greyson didn't notice her and didn't love her back. But one day, Greyson changes his mind and came to Catherine's life and fell in love with her. everything was so beautiful until one day, Greyson left Catherine without any reason. Catherine was totally changed because of that, she was so sad she thought "Why did he come? why did he leave?" but what will happen if her best friend, Nate had fell for her for ages? but catherine just can't notice that. " She knew her love for Greyson's gonna destroy her, but she still loves the pain" "i love nate as my best friend, I'm not in love with him. there's a difference."