That bright springtime , when they loved each other , she had scattered without him knowing it the branch full of bitter white of a cherry tree in bloom and a delicate petal had slipped , like randomly , in the envlope with the love letter . The petal had faded away before reaching the end of the long way , leaving behind it only a little spring perfume that made him smile like one does to a mild memary . And he didn't know that she had been .