Insult of Endearment
To show how well two people don't get along, one or both gives the other an insulting nickname and refuses to call them anything else. Over time, the nickname loses its bite as the characters learn to respect, if not like, each other. Then the formerly insulting nickname becomes more of a term of endearment.
This trope is a good way to show Character Development. As two people who initially disliked each other grow closer, the use of a formerly insulting nickname as a gesture of affection is a good way to showcase their evolving relationship. The Vitriolic Best Buds may see insulting nicknames as part of their snarky banter rather than so...read more