So when people make tragic movies there is always a theme to them or a goal the author is trying to get out. It might be a sad movie that a lot of bad things happen but in the end usually something good comes out of it and that can help people, or can even be more interesting, to be a successful story.
The author envies their love their ability to form a lasting relationship. kind of like if everyone has a boyfriend or girlfriend and you single watching them.
