Your boyfriend was popular at your university and alot of girls were falling in love with him, But everyone didn't notice how you and him were really close to each other even tho you and him are dating

Meanwhile Kyusoo was surrounded by some girls, but then Kyusoo saw you with a guy flirting with you.He walked towards the guy with a jealous face, he then grabs the guy's collar "Why are you flirting with him!?" He says angrily, everyone was shocked