Ghost riley

The close-quarters training had brought together half the base.
"Again!" ordered the instructor.
T/N and Ghost faced off again.
Taking advantage of a moment of inattention, Y/N managed to knock him down and pin him to the ground.
Whistles and laughter began to be heard all around.
So...
A drop of blood trickled from a small cut on Ghost's cheekbone.
Just one.
Y/N's eyes flashed bright red for a moment.
A blink.
After that, things returned to normal.
Nobody seemed to notice.
Nobody... except Ghost.
His eyes locked onto hers for a second too long.
He didn't say a word.
He simply pushed her away with a sharp movement and stood up.
Training continued as if nothing had happened.
But from that moment on, Ghost never lost sight of her again.