Lila: What do you think I wanted?
Dexter: To know what it's like to feel something that deeply. Anything. That's why you hang out in recovery groups. You're emotionally colorblind. You use the right words, you pantomime the right behavior, but the feelings never come to pass.
Lila: It's not true.
Dexter: It is, Lila. You know the dictionary definition of emotions: longing, joy, sorrow. But you have no idea what any of those things actually feel like.
Lila: You're wrong. I have feelings for you.
Dexter: You want to have feelings for me, but they're just impulses.
Dexter: They're primitive responses to immediate needs. You know all the words, but you can't hear the music.
Lila: Stop it. Don't do this. Don't do this.
Dexter: Lila. I'm just like you.