This is something that I have struggled with sometimes and it seems to happen especially with some NT women. My main case is in a job I worked at, this particular woman who was a customer and about the same age as me was incredibly rude to me for no reason, yet friendly to other staff. I never did anything to this person only be perfectly polite and professional. Saw this woman just today and again, daggers looks thrown at me for no reason. This has happened quite often throughout my life and I have never been able to understand it especially when I am not hostile or rude to these people. Can anyone relate?