Yes, I have no problem with that. But YOLT was the penultimate novel after OHMSS, after the death of Bond’s wife. Bond was generally depressed because of it but tried to move on.
It was also written near the time of Fleming’s death when his spirits and health were in decline. Some of it due to the Thunderball lawsuit. The novel was published only 5 months before Fleming died.
I might be wrong but in Casino Royale when they put him on the chair and tortured him with their novel technique(Belgium’s)?.
I always got the idea that he became sterile because of the torture and was depressed,so he played around and when he did fall in love she was taken from him.
His first love committed suicide going into the water and never coming back alive.
All that is left is a very angry depressed Bond who buries it all by fighting for his country without care whether he lives or dies.