Or just short story, perhaps.
A story about depressed man. A passionate lover. A naive girl. Story about finding what is the most important thing in life. Whether love is important in life. Or is it life is exist whether love exist or not exist.
A conflict between man and his own idea. The idea of killing himself. Whether his idea is worth to tried, or why did he even come up with that idea.
An ending as true ending. A true ending as in death. Because nothing is sweeter than true ending. Death. But whether he should die because of his love or because of his life.
Oh ya, I forgot, the story should be start when the character begin to grow up. Begin to questioning why he should make a question.