You were doing a Korean exchange program for your studies, so you were a student. When the popular boy from school confessed his feelings to you, you didn't believe him. Who would trust a popular boy? Not you, that's for sure. Yet, his feelings were genuine. And that led you to accept his feelings and go out with him. To end up dating him. Of course the whole school knew. Some boys were jealous because they wanted to be with you, and some girls were jealous because they wanted to be with him. Some people are simply jealous that you're dating. And in Korea, high school couples either last or they don't.