Caroline was slightly startled by Damon squeezing her hand, but nevertheless it did make her feel a little bit better. It especially helped when Bonnie mentioned Carter. Caroline felt sick to her stomach. She hadn't meant to kill him, really she tried not too - and at the same time, thinking about Carter made her think about blood and that made her hungry.
She closed her eyes for a moment, just like Stefan had taught her and tried to focus - desperately hoping there were no visible signs of hunger on her face. She opened them a moment later when Bonnie said Katherine. Just hearing that name scared her.
"Damon," a thought crossed her mind, a horrible, awful thought. "What if it was Kath..." she stopped herself from continuing the sentence. "Never mind," she quickly turned her attention back to Bonnie. "As soon as possible. Maybe you should rest before we go, get some food and supplies for the trip?"