Isolation and connection. The monster is usually isolated because of its nature, and the love story shows a connection being made. Also, transformation might be a theme. The love could potentially transform the monster or the person in the relationship.
Isolation might be another theme. If the character becomes a monster, they may be isolated from normal society at night. They might not be able to interact with others in the same way as they do during the day. It could also explore the idea of the dual nature of human beings - the normal self during the day and the monstrous self at night, which shows the complexity within a person.
Growth could also be a theme. As he pursues the girl he loves, he might grow as a person. He could face rejections and setbacks that force him to become stronger and more understanding. This growth might not only be in terms of his romantic side but also in his general attitude towards life and relationships.
One possible theme could be the growth of love. As the title implies, the love between the characters might develop and intensify over time. Another theme could be self - discovery. Through loving someone else, the characters may learn more about themselves.
One possible theme could be fear. Since there's a monster involved, fear of the unknown or the dangerous is likely.
One possible theme could be redemption. If there's a'monster' aspect, perhaps a character is redeemed through love. Another theme might be the power of love to overcome differences, considering Staten Island's diverse population.
Another theme is transformation. Often, the love between the two characters causes a transformation in the monster. It could be a physical transformation, like breaking a curse as in the classic fairy tales. Or it could be an emotional transformation, where the monster becomes more empathetic and loving.
One common theme could be acceptance. The idea of a monster finding love often involves the other characters in the novel having to accept the monster for who it is. Another theme might be the power of love to transform. Love could potentially change the nature or behavior of the monster. Also, the theme of outcast and belonging can be present. Since the monster is different, it may struggle with finding a place where it belongs, and love might be the key to that sense of belonging.
One possible theme could be unrequited love. Maybe the person saying 'I love you' to Bunty isn't sure if Bunty feels the same way. Another theme might be the power of love, where this love for Bunty is so strong that it drives the narrator to do great things.
Another theme could be the struggle between good and evil. The league representing the good side fighting against the monsters which could symbolize evil. Also, themes of sacrifice might be present as the characters in the league may have to give up things to win the war.
One common theme could be the exploration of the 'otherness'. The monster represents something different from the norm, and falling in love with it shows a break from conventional relationships. It might also deal with themes of acceptance, as the protagonist has to accept the monster for what it is. Another theme could be self - discovery. Through the relationship with the monster, the main character may learn more about themselves.