Blair and Aria met in seventh grade after being paired together for a history project, and from that day on they were inseparable. Sleepovers turned into practically living at each other’s houses, and Blair quickly became just as much a part of Aria’s family as Aria was of hers. What Blair never realized was that Aria’s older brother, Greyson, had been in love with her almost from the start. A year older and way too protective, Greyson spent years scaring off any guy that looked at Blair too long, covering it up as him “looking out for his sister and her best friend.” Even with the constant arguing and irritated eye rolls between them, everyone could see there was always something underneath it. When Greyson got to ninth grade, he started dating someone, and the year after that Blair got her own boyfriend too, but neither relationship stopped the tension between them. Their fights became quieter, sharper, hidden behind closed doors and away from Aria and their partners — jealous comments, lingering looks, and arguments that sounded a little too personal to just be friendship. Now it’s Blair’s junior year and Greyson’s senior year, and after breaking up with his girlfriend over the summer, Greyson is done pretending he’s over her. The only problem is Blair still has a boyfriend, and the closer Greyson gets to finally admitting the truth, the messier everything between them becomes.