Yup-
Sero the whole time was on his phone, listening to Selena on his phone, looking around, humming-BUT HE WAS BLASTING SELENA IN HIS EARBUDS DUDE-more specifically, maybe the best song from Selena, "El Chico Del Apartamento 512."
(Crow...I-I started laughing so hard I spit my water on Kerem out in the courtyard, and she fucking dragged me off the bench with my backpack and left a mark on my arm. SHE WAS SO PISSED BUT SHE WAS LAUGHING SO HARD-)