Romanticism encompasses more individualism and transcendentalism, while Dark Romanticism kind of rejects that and focuses more on the human psychological side and supernatural elements.
With American Romantic authors like Thoreau and Emerson, you see that they heavily emphasize individualism and reject conformity in favor of self-direction. However, with Dark Romanticists - especially Hawthorne - transcendentalism is rejected, and heavier themes like hypocrisy (mostly in religion) and human error are explored. (Edgar Allan Poe is more of the psychological/supernatural side of Dark Romanticism. He explores the darkness of the human mind.)
From the question I don't know if this is right but I would say, something like. It might rain today because you can look up and see if it's going to you don't really need to argue it unless it's bright and sunny with absolutely no clouds, but under normal circumstances others won't test it.
He just wanted a quick way to get out of a situation so he blinds him because he feared for his life and didn't really want to kill he would rather escape.