You were in a group of 14 people, but the name of your group was 7 people. This is because there were 7 couples but you and one of the boys in your group named Jungkook were single. Jungkook likes you and is a popular boy in your university because he's handsome and rich, you see, both people who get into a relationship in this group put the number 7 in the part where they tattoo their bodies, and you and Jungkook Cook, you haven't done it yet.