"I'm so sorry," he whispered, voice thick with emotion. When he opened his eyes to look at her, they were full of unshed tears. "You mean the world to me, and the thought that I could just -- " He motioned vaguely with his hands, feeling desperate to make her understand. "Lydia, if you knew you were turning into something terrible, that you were turning evil, what would you do?" He knew that she could relate to a large degree because of her banshee abilities, but he'd never once truly believed she was evil.
"I love you too. God, I love you more now than I ever thought I --" He rubbed a hand over his face, wiping tears away and trying to regain composure. "I'm not giving up, okay? I'm going to keep trying to figure out how to fix this." He swallowed hard. "I swear to you I am. But I can't take the risk that I might hurt you."
He couldn't see anymore. Everything was just a blurry haze of tears as he knelt down in front of her, hesitantly reaching out and taking both of her hands in his and pressing them to his mouth. "That's the last thing that I want. I want to fix this, Lydia. I don't want to be like this. I don't want to lose you." He laid his head against her knees, shutting his eyes as he shuddered involuntarily. "I'm just so fucking terrified that I won't be able to stop it when it happens."