Heart of Darkness Ending

I recently finished Heart of Darkness and I am extremely confused as to what the ending actually meant or entailed for that matter. Will Marlow go back into Africa to fulfill his inner darkness? Will Kurtz's "Intended" find herself falling for Marlow because of his connection to Kurtz's final wishes? The one thing I did understand about the end is that Marlow lies for what he sees as the well being of Kurtz's "Intended." I also understand that Marlow's obsession with Kurtz will stay with him for the rest of his life, something that lead me to believe that he might even end up with Kurtz's fiancé. I can't wait to further analyze the ending in class and get some clarity on Marlow's future and post Africa life.