"Yes, our family," he said with a nod. He hadn't meant to make her feel excluded from that. It would take him some time to remember that Kate was literally his family now.
Castle exhaled slowly, listening to her speak. "I know how you are, Kate, and I can't say any of that surprises me. Not that it matters much now since we're here... but you know I never want to be excluded from stuff like that, even if it's dangerous. I want to help you fight anything that comes our way. You're my wife, and that means that it's not just you anymore, it's us. Anything threatening you is threatening me as well."
He truly believed that they were stronger together and that the best way to solve anything was with both of them.