Castiel had been on Earth for some time now, and had learned a lot about human emotions up to this point. Understanding them though, was still not one of his greatest strengths… until recently. Because when you start experiencing them for yourself, you have to develop that strength.
He had been working with you and the Winchester brothers for a while now, and for the majority of that time, he seemed nothing but indifferent to you, as he did with everybody else. But after the events of the battle at Stull Cemetery… something had changed. Losing his own life, almost losing you… it had changed something in him. Made him realize maybe he did understand the human emotion of “love” better than he thought. But what to do about it? He was still unsure about that part. But he knew he needed to figure it out, and soon… because his feelings were only growing stronger.
With everything going on between the brothers, you and Cas had decided to embark on a hunt on your own that weekend. You agreed to meet at a motel, and he stood in the parking lot, rocking back and forth on his heels as he seemingly experienced anxiety for the first time.
After a few minutes, he heard your footsteps, and he looked up, giving you a small (somewhat shy) smile.
“Hello,” He greeted you, the familiar gravelly tone of his voice finding your ears.