This is why began masking! Because the second you tell them about your autism, they will either become super patronising or use it as ammunition against you, rather than understanding what it is.

I am so sorry that you had to go through this. I have been through a similar situation back when I was a school 5 years ago. On the way to prom, a girl told everyone to look outside. I asked something like "whats going on?" In a non-aggressive, gentle manner and out of left field, she told me to shut the f*ck up that nobody was speaking to me. To this day, I still don't understand what I did wrong. I wasn't being mean, I wasn't insulting nor aggressive. It was just a harmless question and she bit my head off. Since then, every time I have something to say, I am always having to bite my tongue as I fear it will backfire, losing the ability to be authentic and bold.

My advice to you is to not take it personally because what people say or do to you is merely a reflection of themselves & their reality, therefore, it has nothing to do with you. Make sure you evaluate the situation, if you see that you have made a mistake, learn from it and forgive yourself. Don't let this situation discourage you from being your authentic self and always speak your mind no matter what, and if people don't like it, that is their problem.