He probably just told that guy to say he was his boyfriend to see how he would act and get jealous. Seeing as how the rest of the manga is, I 100% believe that is the case. He was probably also the one that initiated them for sex, but he doesn't want to admit it.
He probably just told that guy to say he was his boyfriend to see how he would act and get jealous. Seeing as how the rest of the manga is, I 100% believe that is the case. He was probably also the one that initiated them for sex, but he doesn't want to admit it.