"I know." He wasn't about to deny he was an ass, he used to revel in the fact. But now he had a damn conscience and he did owe her an explanation for this. Not that he wanted to speak about it. A generalisation would suffice.
"I'm a fallen angel. Parents are pure angels. They found me after a hundred years, dragged me someplace, tortured me, tried to cleanse me... sorta worked. S'why I can't swear. It's why I can't do a lot of things..." He sulked a little, glaring at the floor. Fuck his parents. Fuck everyone.