What is the first step in dealing with an injured relationship

Nthis poem by ruskin bond, what does the use of the word heart-beats suggest about the narrator's attitude toward life?

Ill she not be here anon? is she not hurrying to upbraid me for my haste? have i not heard her footstep on the stair? do i not distinguish that heavy and horrible beating of her heart? what is the effect of parallelism in this excerpt? it emphasizes usher’s misunderstanding. it emphasizes usher’s love for his sister. it emphasizes usher’s psychological fixation. it emphasizes usher’s melancholy nature.

What is hamlet pondering at the beginning of act 3?