Octavia was already shifting closer to him even before the shiver, trying to -- okay, she wasn't entirely sure what she was trying to do because her desire to solve this was far sharper than her muddled plan of action, but... Trying to share the blanket, probably? Somehow.

"Should we just go back inside?"

She didn't want to go back inside yet.

But notice how she managed to pull words out just fine when it was about him.