This is heartwrenching. I know it too well. My daughter deals with the same thng. She's 7. She is on the spectrum and it seems like she gets blamed for her odd behaviour by her teachers. Most of her classmates are still kind to her but they are getting older and starting to realize that she's very different. She is very aware of this on a certain level and has taken to hitting herself when rejected. Just because kids with autism don't know how to express their feelings doesn't mean they don't have them. When my daughter was younger I thought she wasn't tuned into the behavior of others until we moved to a small town where everyone said hello to her. We came from Los Angeles where people wouldn't even acknowledge her when she said hi. On the first day we lived in our new home, in our new state she said, "I like it here. People are nice." Unfortunately I think kids withthe disorder are more aware of stuff than we want them to be. They just don't get why or how to deal with that stuff.