Answer: The purpose of flashback is to either move the story forward or reveal information about the character. You can use flashbacks for any number of reasons but its primary purpose is to bridge time, place and action to reveal a past emotional event or physical conflict that affects the character.
Hope this helps!
…sorry but this don’t make any sense LOL
Answer:
I would say that it is a pessimistic tone that shows the hopelessness of the situation.
Hope this helped!