Well, first, the author can use dialogue effectively. Characters can discuss their feelings about love and how other things like power or money are affecting it. For instance, in a historical novel, two lovers might argue about whether their relationship can survive in a society where wealth and status are highly valued. Second, the narrative structure can play a role. By alternating between the love story and the events related to 'something else' (like a mystery or a political struggle), the reader gets a clear picture of the two competing elements. Third, the author can use symbolism. A flower might represent love, while a dark cloud could symbolize the 'something else' that threatens the love. This helps in a more nuanced portrayal of 'love or something else' in a novel.
One way is through character development. Show how a character's love is influenced by other factors. For example, a character's love for someone might be overshadowed by their loyalty to their family. Another way is by creating a conflict. Let's say the character has to choose between love and a great opportunity for personal growth. This conflict can be developed throughout the story. Also, the use of setting can help. A gloomy, war - torn setting might make the choice between love and survival more poignant.