Why do people hate shy people? Why girls are mean to me?

I had this condition as child called selective mutism where a person freezes can’t speak in social places. Whole life I was shy had no friends. Now as I’ll be 23 I bicker with mom daily, I have my own studio but I’m lonley I don’t get to see boyfriend often, I have anxiety that made me unable eat and choke on food daily. At past jobs girls gossiped of me even tho I was nice, they were mean. My cousin fought me years ago and she was jealous of things I had or how I dressed. I have now a clothing business but I’m alone in room working daily. Moms friends think I’m mentally ill All becuz I’m sick with anxiety. Many girls are hard talk to and don’t like me as I don’t talk much yet I get along better with guys I can say anything. I have no sisters.
Why do people hate shy people? Why girls are mean to me?
Post Opinion