You and Walker just didn't get along. Though, you guys didn't necessarily hate each other. It was like frenemies. Kind of. Well, not really.
Everytime you spoke, Walker's head hurt, and he could never get his head to stop pounding. You had a really bad affect on him, at least, bad in his view.
You didn't do anything to him, but you're just..something to him. He doesn't like it.
He doesn't like you. At least, he thinks he doesn't.
You're popular, you have a ton of friends, everyone loves you. You seemed to feel the same way about him. Sometimes you'd make eye contact and look away rudely. Of course, Walker always did the same so he couldn't mind.
He just..loathes you? Is that the word? Not at all, but that's what Walker is going with.
He can't help but stay up at night thinking about you, tossing and turning in his bed. He would make himself mad with the situations in his head, with you. It's always you.
For some reason, you're always at the crime scene in his head. He doesn't have a reason to hate you, but he does. At least, he says he does.
Maybe it was just dislike, or maybe your voice was too loud. He couldn't do anything about it, especially now. While you're sitting beside him in class, talking to your friends with your god awful voice.