One of my critique partners sent me an e-mail yesterday to the effect of (and I'm paraphrasing, but you'll get the gist): "I hate my main character. Hate her. Hate her. Hate her. I never want to type her name again. Hate her."
My (oh-so-sympathetic) response: "About time."
See, her WIP...is good. Her story? Compelling. And now, her main character? Real.
I have this theory. Your main character isn't truly living, breathing, and real until you good and hate her. Until the thought of killing her off seems delightful. Until you want to do a universal Find/Replace to change your character's name to "DieEvilSpawnOfBeelzebubDie."
The dangerous times are when you just. don't. care. And I've had plenty of those times, too. But the fact is, when you have those strong emotions about your characters, it means they've struck a chord somewhere down deep in you. Which means they'll probably strike a chord down deep in someone else as well.
Just don't do anything too rash like pull out all the stuffing and hit "delete all."