Yes, I think it has to do with people actually SEEING how she's hurt. For instance, several times, on here, people have said that it's easier for others to SEE disability, when someone is in a wheelchair----there's no QUESTION that they're disabled; whereas, with an Aspie, no one can SEE our disability. I mean, obviously, someone could see if we bang our head, or whatever----but, people don't understand that. People understand "wheelchair = disability".
I feel it's the same with this incident. When she was hurting, angry, etc., if she had been PHYSICALLY hurt, she could say: "See, there's proof, that he hurt me!"
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White female; age 59; diagnosed Aspie.
I use caps for emphasis----I'm NOT angry or shouting. I use caps like others use italics, underline, or bold.
"What we know is a drop; what we don't know, is an ocean." (Sir Isaac Newton)