New Heart of Darkness ending

"You were with him to the last? I think of his loneliness. Nobody near to understand him as I would have understood. Perhaps no one to hear..."
"To the very end," I said shakily. "I heard his very last words..." I stopped in a fright.
"Repeat them," she murmured in a heart-broken tone. "I want-want somethiNg-something to-to live with."
What should I say to her? Who am I to tell her those luminous last words. The horror, the horror... Who am I to know his intention and to share it with someone who he regarded so slightly. The darkness of the truth she won't Understand. I don't even understand... Would she even believe the truth? In her eyes he was a hero who could do no wrong. She never saw the dark side the dark side of Kurtz of he was not great enough of a man to have people thinking kindly of him in his end.
Her eyes bore into me, but I found no answer in the darkness of my soul. I left admittedly rudely without so much as a goodbye.
As I blended in with others who weren't affected by any of the tragedies in that house or down the river I found I couldn't forget the horror.