Kaoru didn't know why he started feeling this way.

No, that's not true. It was the way you treated him like a person, unlike everyone else who behaved around him like he was already a corpse.

It was the way you seemed cold, but when he spoke for a while with you, you'd warm up, you'd laugh.

Oh gods, your laugh. How he adored the sound of your laughter.

He knew it was a bad time. He was counting the days, and he knew you were, too. But he couldn't help it.

He was in love.