The answer to your question would be the last answer, starting with "Darkness, greed, and corruption" Charles Dickens creates this sense of darkness by the words he uses to describe the scene, such as "foul, cesspools, bad repute".
I believe his anger disappeared, as he too wanted to patch things up.
This has to do with Milton's Paradise Lost, where Eve ate from the Tree of Knowledge, and then made Adam do it as well, which caused them to fall from grace. She started apologizing to Adam, saying that it was in fact her own fault, and because they loved each other, he forgave her because he wanted to be with his wife again.
A.) Dream memories and fall leaves are being compared in the simile.
