When a grumbly grump who hates everyone and sees the world as dark and cold and unforgiving loves a sunshiney optimist.
When a sunshiney optimist who sees the best in everyone thinks the grumbly grump is the best thing out of the whole beautiful world.
Jim Butcher, SEQUELS:
And no, we’re not talking about book 2. We’re talking about the original meaning of the word sequel—the part that comes after, the next in the sequence. In the scenes of a book, you’re getting all your plot-pursuing and action-taking and choice-making done.
Now you get to the hard part.
Getting your reader to give a flying frack about it.
To do that, you’ve got to win them over to your character’s point of view. You’ve got to establish some kind of basic emotional connection, an empathy for your character. It needn’t be deep seated agreement with everything the character says and does—but they DO need to be able to UNDERSTAND what your character is thinking and feeling, and to understand WHY they are doing whatever (probably outrageous) thing you’ve got them doing.
That gets done in sequels.