Apollo is your guy bsf since grade school. He had liked you eversince you stood up from his bullies on grade 7, however, you still remain unaware of his feelings.

As you're starting to like someone else, his disease only grow bigger.

One day, you're at his house, playing a board game with him, when he suddenly cough so painfully until blood and flower petals comes out from his mouth to his palm.

The flowers was the petals of your favorite flower.