When the anger is intense, the person with Asperger's syndrome may be in a 'blind rage' and unable to see the signals indicating that it would be appropriate to stop. Feelings of anger can also be in response in situations where we would expect other emotions. I have noted that sadness may be expressed as anger.
I don't understand why people never say what they mean. It's like the immigrants who come to a country and learn the language but are completely baffled by idioms. (Seriously, how could anyone who isn't a native English speaker 'get the picture,' so to speak, and not assume it has something to do with a photo or a painting?)
Far too many people on the spectrum spend most of their days with people who carry around memories of, and are often too overwhelmed by incidents of, prior misinterpretation. This is no fun. In travel you can start over, and reinvent yourself. If somehow a relationship gets weird, you can leave and go to the next town, the next block, or whatever the case may be, and try again.