Answer:
1. The author is furious and angry towards the "you" mentioned in the poem, sarcastically and offensively questioning their attitude and words to the author.
2. "Who are you" is used in each sentence in the poem to point out the author's aggression to the "you" in the poem.
3. The author used a livid and angry tone almost in a passive aggressive way of speech while sarcastically pointing out how their opinion didn't matter to them, at the end of the passage however, the author spoke in a sorowfull tone.
4. At the beginning of the poem the author was furious and livid but then started showing deep saddness and hopelessness by the end of it.
