I've never heard that exact quote.

But here is a quote from the historian François Furet, "November 1918.... what was Paris on the day of the armistice, on the day after the armistice, no one can imagine. One has to have seen it. People were embracing the streets. Every one: the bourgeois, the laborers, the office workers, the youth, the old people, it was a sort of mass madness, but it was a joyful madness.... On the contrary, in the month of May 1945, Paris was mortally sad, the Paris that I saw. I remember a conversation I had with the French writer Jules Roy on that day. He was struck as was I, by this sadness, this absence of hope. It was the victory of the allies more than it was that of France. It was nothing at all like the transport of enthusiasm of the days of November 1918." - from a translation of Furet, Francois, Le Passe d'une, Illusion: Le Passe Sur L'idee Comuniste au XXe Siecle

The French were on the side of the victors in WWII, but they weren't one of the victors. And more than person since then has highlighted how that left a bitter taste in the mouths of the French people.

If the British had done more maybe France wouldn't have fallen. If the US had become involved on time, instead of being late as always, maybe France would have prevailed. These are things you can hear the French say today. There is a strong sentiment that France's occupation was due to inadequate support from the other western nations. It is easier to hate your friends who should have had your back, than the enemy you always knew about.

This is especially true when one of the friends (the Americans) never stops talking about how they saved your butt nearly 70 years ago, and they expect you to give them a pass on everything because of it.