He said. "I didn't know she was nasty".
If I said "I didn't know you were a whore" you would report me for calling you names (note, I didn't, just using an 'if' example).
Kinda reminds of what Judge Roy Bean reportly said.
I understand you have taken exception to my calling you whores. I'm sorry. I apologize. I ask you to note that I did not call you callous-ass strumpets, fornicatresses, or low-born gutter sluts. But I did say "whores." No escaping that. And for that slip of the tongue, I apologize.