KHaL sends this question in:
I’m writing a story centered around two antagonical characters. All the narration is in first person from the perspective of each of them, and a doubt arises: one of the characters is quite pedantic, should this be reflected in the segments narrated from his point of view? In other words, even if the narration is first person, can -or should- his expression depart from his personality so that -for example in this case- the narration is not unpleasant due to the way he is? Would that be coherent even if character and narrator are the same one?
What you suggest cannot be done*. A character:
- cannot be two characters
- cannot have two ways of expressing himself
- cannot soften his discourse just so that the reader likes him
Having said that, a character:
- may want to appear tougher than he really is
- may be disliked by other narrators, who would portray him as worse than he really is
- may have a split personality
- may evolve from unsufferablee to loveble through his experiences within the story
- may try to be nice to the person to whom he is telling his story, in order to get their favour (explicit reader)
- does not need to be likeable (see Lolita)
In other words: *What you suggest cannot be done… without a justification within the story.