Carl relaxed slightly at Spike's words, and offered him a small, apologetic smile. "I am sorry about that, Spike. I hadn't realized..." He wasn't sorry about sleeping with Dawn, he would never be sorry for that. He loved Dawn, and he would do anything for her. But he was sorry for upsetting Spike because of it. And not just because he was a bit scared of the vampire.
Okay, more than a bit scared.
"So I was in the wrong place at the wrong time?" he asked. "That's not the first time that happened. I've gotten shot twice, two different times, for being in the wrong place at the wrong time. It's how I lost my eye." He hadn't ever really gone into detail about how he lost his eye with anyone. Not even Maggie or Daryl, when they ha been here. Most people here just accepted the fact he was missing an eye, without really asking how it had happened.
They knew what his world was like, and took it at that.