Female villian aesthetic

[COMPLETED] Agent Isobel Diaz is apart of the FBI's Secret Operations Unit. Until she makes a fatal mistake and her mission goes sideways, leaving her responsible for the death of her partner. She goes undercover on a high risk mission as an attempt to save her reputation, but what will she do when she falls in love with the man she's expected to convict? #2 in realistic fiction #2 in FBI agent #5 in suspense