Final answer:
The question seems to refer to moments of saying goodbye with emotional undertones in a literary context, although there is no direct evidence of characters named Stevie and David saying goodbye whilst angry with each other in the provided excerpts.
Step-by-step explanation:
The dialogues you are referring to could be interpreted as various farewell exchanges between characters in a literary work. These conversations seem to be coming from moments of intense emotions where characters are representing the profundity and sorrow linked to parting or saying goodbye. Whether it's through a simple 'Good-by' or through more complex interactions, each excerpt reflects the nuanced ways that characters say farewell under different circumstances of tension, regret, or heartfelt emotions. As there is no direct reference to characters named Stevie and David saying goodbye while angry at each other, it seems that the provided excerpts illustrate different characters and scenarios, not specifically tethered to any singular event but rather showcasing an array of goodbyes with underlying tension or emotion.