Kenty I think this excerpt from RustyTrawlers post is relevant to your customer… when everything was well with your relationship he likes you ….but this example sums it up….
Sometimes people want to hurt at all costs. A couple divorcing with palpable rancour and animosity may understandably say to hell with political correctness. They know where the bodies are buried and they know what’s going to elicit a response. Sure, they didn’t mind that their partner was only 4 foot tall when they were in love – but now he’s a midget. A fat midget! A midget with ginger hair! A drunk midget! A midget with a peg leg and a speech impediment! Sorry, I’m going on a bit, but it hurt back then and it still hurts now. Seriously speaking, this person isn’t anti small people or people with ginger hair. It’s just this particular small person that she no longer likes. Political correctness can get in the way of invectives. Context is everything.
I wouldn’t mind betting your customer regrets his silliness now…… but there’s “nowt so queer as folk” :D