"No, I mean, a guy kissed me and it made me gay," Magnus says, laughing. "Bi? Pan? Whatever. Into dudes." Alex kissing him had been like... unblocking a faucet, or something. Afterward he'd started realizing just how many good-looking men there were.

(Okay, so when he told Samirah about being into Alex-as-a-dude, she had laughed at him and told him he was clearly also into Amir, and then he understood the truth of her claim. And then all of Floor 19 -- including Alex -- started rushing to point out other, similar instances. Same difference.)