"Shit-!"
He runs over to the source of the sound
Aaaand-Lukas falls cuz his legs are WAYYY too fuckin' weak to be running right now.
"Gah! Owww..."
"..."
He slowly pulls himself up, wincing a little
"I-heard a noise...I just wanted to see if you were ok..."
"I...I do care..."
He walks over to her and sits down, lifting the pillow off of her face
"What's wrong, Katsuki...?"