Your supervisor knew you have ASD I am assuming? She was probably TOLERATING yoyr behavior in hopes you would get over it....but when you didnt, was probably whan she had enough.

I managed to tolerate the bad behavior of my ex for way too long before I finally had enoygh too. It was after that I realized all his behaviors fit ASD also.

Sometimes it takes awhile for annoying behaviors to build up our annoyance also....anniyance builds up with time. If people woyld just express it immediately until wauting till they blow up it would be better but not a human way to react. Most people try hard to give the benefit of the doubt until they hit their snapping point