You made me look it up and holy fuck is this a dick move:

The couple, who married just four months ago, reportedly got into an explosive argument at Universal studio chief Ron Meyer’s house two weeks ago. Meyer screened Borat for Rock, Anderson, and several others, and Rock considered Anderson’s performance, of which he apparently knew nothing whatsoever, so embarrassing and infuriating that he reputedly called her a “slut” and a “whore.” Since then, relations between the two have gone from bad to worse, and Anderson announced that the split was for real on her website Monday (Nov. 27).

I figured kid rock just had a dumb sense of humor and thought it was funny to repeatedly call her “my wife,” but apparently he preferred slut shaming her. I’m also confused about how you marry Pamela Anderson without being cool with her doing sexy things on camera.

That said, it’s nearly twenty years ago and was initially reported by the New York Post, so take it with a grain of salt.