how to make people stop bugging me with an annoying rumor?

[HelloMyNameis_______]

So my "best friend" told everyone I liked this new kid joey but I only said I liked him as a friend but people don't believe me. Yesterday I stayed in the office because people were embarrassing me and joey, the people in my class are so childish they started to sing "lindsay(me) and joey sitting in a tree k i s s i n g "and so on. Today I skipped school because i was pretending to be sick then I ended up waking up sick (just a ctomorrowld), and tommorow is the last day of school. So how do I stop thschool wideits now schoolwide international in my school
Sorry i made a mistake at "Today I skipped school because i was pretending to be sick then I ended up waking up sick (just a common cold)".
im in middle school