How come people are calling me a in the closet because I listen to justin bieber ?

I'm getting called a ual in the closet because I listen to Justin Bieber's music and It is just getting ridicolous every day. I'm a Straight Guy and I've just turned 18 years old and I'm in my junior year of high school. People keep on saying that I should come out of the closet but how can I come out of the closet if I'm Straight ? I been Straight all my life and Girls attract my attention. Someone went around the school and told everyone that I'm Gay and that I'm still in denial and all of these gay guys keep on coming up to me and rubbing my shoulders telling me it's okay, I'm Straight and it bothers me when they do that. I'm still single and I've never dated a girl and it's because I've been rejected by all girls, they said I'm not the type of guy they would like to be with, they said that I'm a guy for gay guys. They said All Guys who listen to Justin Bieber must be in the closet s. Everyone keeps on dissing me because I listen to Justin Bieber. I've tried convincing people that I'm Straight and they won't believe me. How come they keep on say that i'm a ual in the closet ? How come people keep on saying that Justin Bieber is Gay Also ? I don't think he's gay. People say that I will never ever be able to get a girlfriend if I keep this up.