That lack of awareness of how badly you have offended some people is typical psychopath behavior. It does not surprise me at all, but I have lived with psychopaths. Most people have not, so this seems strange.
The major defect in psychopathy is the inability to construct mental models of other people. This leads to lack of empathy, poor predictions of how other people will react, what is interpreted as strange behavior by others, construction of false realities (seen as pathological lying by others), etc.
