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Goodreads asked Cynthia Voigt:

Who is your favorite fictional couple, and why?

Cynthia Voigt How odd that when I branch out from the romantic (and I am a great romantic) possibilities for this (Elizabeth Bennet and Mr. Darcy, Ophelia and Hamlet, Forster's narrator and Maurice) and try to think of fictional examples from daily life, no names spring to mind. Long and happy marriages between people who continue to find one another interesting, amusing, admirable: I know they exist in life, but where are they to be memorably found in fiction? I don't know about you, anonymous questioner, but I'm going out looking.
As to the why part, well, there are the usual array of reasons, from emotional satisfaction to validation of a certain moral structure and hopefulness, admiration for what human nature can be ... as I said, the usual.

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