The abusive relationship in the fanfiction is pretty serious. There's emotional manipulation, control, and sometimes even physical aggression. It makes for a very intense and disturbing read.
It depends on the specific fanfiction. Some writers might include a kiss scene between Shelby and Barry to heighten the romance, while others might focus on different aspects of their relationship.
You might consider writing a fanfic where Cyd and Naldo start a business and face all kinds of challenges and successes. It could show their friendship growing stronger through teamwork and determination.
The portrayal of abusive parents in such fanfiction can vary greatly. Sometimes, it's shown in a very intense and obvious way, with physical or emotional harm being blatant.