The theme of self - discovery also often appears. Through the relationship with the ghost, the gay character may learn more about themselves, their desires, and their place in the world. For instance, they might realize that they are capable of loving in a way that is different from what society expects, and this helps them to better understand their own identity.
Isolation is a common theme. The gay character might already feel isolated in society due to their sexual orientation, and falling in love with a ghost adds another layer of isolation as the relationship is something that most people can't understand. For example, in many stories, the character has to hide this relationship from others.
Love beyond boundaries is another theme. Since a ghost is not a living being in the traditional sense, it represents a boundary that love crosses. It shows that love can exist regardless of physical form or the constraints of the living world. Just like in some stories, the human character loves the ghost despite all the difficulties that come with it, such as not being able to touch the ghost in a physical way all the time.