The similarities of writing and reading is that they both are recursive processes . Writing you have to put alot of depth and thought into making your sentences and paragraphs, you roam with ideas to make your story. While in reading your trying to comprehend what the writer has given to you and fully understand its story .
Hester means that the letter has been on her for too long and too many people have seen it for it to just be taken off. The damage the letter has caused her has already been done.
It's "my feelings were not the result of any marked cruelty in the treatment I received; they sprung from the consideration of my being a slave at all. (I believe this is correct cause he thought he was a slave himself. And obviously didnt like it