"It all begins and ends with him." Dexter's eyes fell to the floor, and he considered both this conversation and the only other one that he'd had with this girl.
"You can't even see it. I actually don't know if you can't, or you just won't. If there's some willful ignorance going on with you. But it's there. And it's the truth. You've said it yourself so many times, though not always in plain words. The man is your life. He's the reason you do almost everything that you do."
He looked back up again, seeing her pouting and looking away.
"Nothing will change. Until your name for God isn't the same as the one of the man who provided half your DNA, you won't be able to do anything else. It doesn't matter who else comes into your life. If I were to agree to teach you The Code now, all it would take is him coming back and it'd be over."