Disclaimer: I don't own Castle, cuz if I did, Kate wouldn't have been so silly not showing her feelings. I also don't own the song, although Easton Corbin did a pretty good job.

I Just Can't Love You Back

I can love you in the morning

I can love you all day

I can love you even more when I get home…

Castle leaned over her, not quite believing what had just happened. "Beckett's down!" He heard muffled shouts, but they were all white noise. He was more concerned with what lay before him. "No no no, Kate…" Her eyes were wide and terrified as she moved her bloodstained glove off her chest.

I can love you every second

To the ends of the earth

Where needing you's the only thing that's on

My broken one-track mind…

"Shh…Kate, please," he begged, watching his world slowly fade away, unable to stop it. "Stay with me, Kate," he pleaded, "Stay with me. Don't leave me. Please." She gasped for air, and he wished with everything he had that he could give her his own breath, if only she would live.

Girl, I love you crazy

It comes so easy

After all we had…

"Stay with me, okay?" He gazed at her face and saw the teardrops sliding from the corners of her eyes. He fought hard to stay strong for her, but he was breaking. "Kate…"

I can love you with all my heart, but

The hardest part is

I just can't love you back…

"I love you." The words slipped out, but he just couldn't hold them in any longer. She had to know, as if somehow she would fight harder to live if she knew. "I love you, Kate," he repeated, trying to make her understand the depth of his emotion.

He saw the corners of her mouth slightly tilt to form the vaguest smile, and he thought she might make a comeback. However, his hopes were crushed as her eyes lost focus, glazed over and closed. He held her as her body went limp, not comprehending that his best friend and love was no longer breathing, probably not even alive.

I can love you for all I'm worth, to

The ends of the earth, but

I just can't love you back…