"They aren't feral, Isaac." Stiles snorted. "There is a difference, and you know it." He didn't understand why Isaac was so insistent that he was part of pack; it made him feel...

...he didn't know. Good, somehow. But that didn't mean Derek would feel the same way.

"I wasn't part of the pack. It's not like Scott magically joined up. And just--" Stiles shook his head. "I left you because I didn't have a choice. Why can't you see that!" He didn't need to be made to feel even worse than he already did. He was the freak, he always was. He just wanted one person to understand that he only left because he had to.