Why is there a continuous misconception about who I am?

I wouldn’t mind if the misconceptions about who I am came from strangers but family have said this about me and I am not happy. I keep myself to myself and barely talk or see family. I have a public life on the blog but I also have a private life offline. I do not gossip either or offline. I am offended because I have never passed private information about anyone to others. I have only ever said what is public knowledge. I don’t know whether the assumptions are based on what they assume autism is but I assure you all that that assumption is wrong. I may have been a bit of a bitch and all over the place growing up but I would have more likely backstabbed you with a lie during meltdowns. I barely have them now and am a lot calmer. I would never be the weakest link when it comes to letting out personal info. If anyone assumes it is me then they are so wrong. I literally lived in a place where being that way would get you punished. I was conditioned to keep stuff to myself.