I see it as you have two options...

You let it be because who knows the shit she's heard and had to put up with in her years of dealing with people. I know he knows you and whatnot but if he's going around disrespecting people then next time you see him tell him if he does it again you'll fuck him up, because he now knows you mean business.

OR

You fuck him up or get someone to and he doesn't know why because obviously you wanna stay anon. So he doesn't learn his lesson and could make him even more of a dick.


Remember...Karma will catch up on him and you.