Maybe this is why????
"Despite his stunning success in the air, Rene Fonck was never embraced by the public in the same way as Georges Guynemer. Possessing a withdrawn personality, he seldom socialized with other pilots and instead preferred to focus on improving his aircraft and planning tactics. When Fonck did socialize, he proved to be an arrogant egotist. His friend,Lieutenant Marcel Haegelen stated that though a "slashing rapier" in the sky, on the ground Fonck was a "a tiresome braggart, and even a bore."
