Their venue of choice was London's Le Gavroche. Yet le menu exceptionnel appears to have been the least of it as two (shall we say) monster egos tussled over whose (er, ego) was the largest of them all. Or to quote JK in his message to Madame Arcati: 'Upon boasting about my achievement [presumably of reaching the No1 spot in Amazon's Pop Culture Kindle chart with his memoirs 65 My Life So Far], I had to suffer his numerous No1 positions in every known chart in the Universe.'
Personally, I should have drowned Fry in the watercress soup, but JK bore this onslaught with magnanimity. As he says: 'Oh dear. But he is a lovely person.'
Naturally, their date could not go unnoticed. JK reveals: 'We then had a very loud disagreement about the value of language and the abilities of different species - as we left I apologised to the other Gavroche diners and a lady said, with a huge smile - "Absolutely brilliant"!'
I wonder who settled the £600 bill. [Answer from JK in comments]
PS - JK adds in a private email - 'I had lunch with Neil and Christine Hamilton last week [See photo]; Anne Robinson a few months ago; Jane Moore next week - real friends don't desert - even when one becomes a Vile Pervert!'