I Promise {Divergent - Caleb Love Story}

Caitlyn Brooks comes from a broken home; her father is always away on business, her mother abandoned them when she was only three, her older sister Anna often locks herself inside her own little world and her twin brother Callum takes his anger and frustration out on Caitlyn.
During her childhood she used to be best-friends with Caleb Prior, much to her brother Callum's dismay. They were like the siblings each other never had; they would exchange gifts/secrets, spend countless hours together, stand by each other no matter what. That was until they received news that Caitlyn had to transfer from Abnegation to Erudite, along with the rest of her family, so their father can work on his career. Everyone expects her to live up to her father's expectations to become a scientist or a doctor, even though it's not what she aspires to be. She has to focus on her studies which means she has no time for friends. As time went by her and Caleb drifted further apart; they still saw each other in school but were banned from mixing with anyone from another faction to try and avoid conflict. However, she never forgot him, much like he never forgot her. They would often spend their time alone, being bullied by their classmates for having no friends.
Eventually Caitlyn and Caleb, along with many other's, have to choose a new faction. Caitlyn is unsure of what to do but with her brother pressuring her to choose Erudite to support the family, will she make the intelligent choice?