Thor stopped. His head fell backward until he was looking up at the sky, and he let out a huff of breath that hung in the air above him. The rages that came over him were out of his control. And it seemed that the guilt that followed was nothing he could rein in either. Her words only made that feeling worse, but he couldn't leave her thinking it was her fault.
Turning, he walked back towards her coming to stop close enough to look down at her. In solemn tones that once would never have come from his throat, Thor told her, "It's not you. It's me."
That probably wasn't enough. Though he didn't really want to explain, he did so anyway. Tapping his temple, he said, "I'm broken. Been this way since a battle left some stones in here, and now..." Thor shrugged and glanced toward the building before looking back at her. "Sometimes this happens. I don't even really know it's happening 'til it's over, and then... I've done such terrible things that I can never, ever make up for them. This, this house, it can be rebuilt. This 'un wasn't too bad, in comparison."
He shrugged again and took a step back. "You didn't say anything wrong, or do anything wrong. I did. Wasn't you. It's me. It's always me. Which is why it's never gonna get better.
"Go back inside," he told her gently, "'fore you freeze out here. Make friends that are worth keeping."