Carina was a new student from Italy; Maya was the star of the track team. What if Maya's life wasn't as perfect as it seemed, and Carina was there to witness it? A series of one shots of Maya and Carina through the years had they met in high school. (Mostly canon, no cheating with Jack, also not necessarily in chronological order.)
Marina POV of 5x15: Maya knows abt what happened to Carina, and longs to be there to support her. Carina, back at the station, deals with her own feelings surrounding Andy's assault. All of Station 19, including Carina, try to do whatever they can to support Andy and each other. TW: multiple mentions of, and insinuations to sexual assault. (Also touches on Maya's grief over Ryan.)
Letters between the PLL girls