Why doesn’t anybody like me? Is it because I’m autistic?

I never understood, I am polite, kind and very helpful but some people think I give a bad vibe or something is off about me. I can be shy and quiet at times but it doesn’t mean I don’t care or I’m cold. As a kid I got diagnosed with autism at age 7. Not a lot of kids wanted to play with me. I was disliked a LOT during school. I’ve had friends but they ditch me. Middle school was horrible and high school wasn’t any better. I had a friend since 8th grade and until 11th grade, we were the best of friends. She started hanging out with other girls and started ignoring me. I tried to talk to her and asked what did I do but not a word. I chased after her and my parents told me to let her go and she wasn’t a friend. My parents kept warning me not everyone is my friend and I’m so stubborn and I won’t listen. I didn’t wanna be the loser with no friends. Even my classmates in special education don’t really talk to me. They think I’m too stuck up, rude, and make them feel dumb by knowing more stuff then that do since I’m more advanced. One of them said I have a huge ego.
People get upset when I make the conversations about me when they speak about their experiences. I only did it to relate to them. They just stop talking, frown or walk away when I do that. Even at work most of the students don’t speak to me. I got ignored by a couple of students today at my job. I said hi to them but they ignored me and passed by me and said hi to the other teachers and hugged them. I act like it didn’t bug me but it really did and hurt me. Even some of my coworkers don’t really talk to me either. Some do. I don’t know if my autism is the reason or is it because of my height. I’m a tall girl at 5’10” and thick and overweight. This one coworker who is also autistic isn’t interested in getting to know me. I thought since we were both autistic, we could get to know each other and be friends since I can relate to her. Why doesn’t anybody like me?

Why doesn’t anybody like me? Is it because I’m autistic?
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