There weren't enough words in the English language (or in any language likely) that could fully express how grateful Jacen was for Nathan. The boys hardly knew each other, ran in different social circles at school, yet they had been thrown into this situation together, and it was not something that could be easily broken. For the most part, Jacen was keeping his mouth closed just to focus on the walking but especially to keep from throwing up.
At Nate's question, Jacen couldn't help but actually grin. He knew people couldn't remember as much as he did, and it was a slight comfort to him that he still had his special ability and that despite that, people could still surprise him. "It's okay. It's Jacen Allen. I'm... Josie's brother." That was usually how people knew him, since Josie was the more popular twin.