Today, the most compelling stories reject that model. Modern writers are exploring where a girl’s relationship with her best friend is just as sacred—and sometimes more complicated—than her romance with a boy (or girl).

whether in YA literature, streaming series, or blockbuster films, the way girls love and relate to one another—and to their romantic interests—is finally being written with the nuance it deserves. Historically, romantic storylines for girls were built on a foundation of scarcity. The trope of the "catty" rival, the best friend who turns traitor, or the love triangle where two girls fight over the same boy dominated the screen. Think of the early 2000s: relationships between girls were often transactional, defined by social climbing or jealousy.

Consider Fleabag (BBC/Amazon). The titular character’s romantic entanglements—with the Hot Priest, with Harry, with various one-night stands—are not aspirational. They are raw, embarrassing, and often self-sabotaging. Yet, this depiction of a girl’s relationship with her own sexuality and trauma became a cultural phenomenon because it felt real .

Shows like You (from the perspective of the stalker) and Tell Me Lies (Hulu) have flipped the script. Tell Me Lies , set in the 2000s, follows Lucy and Stephen—a couple whose "romance" is a masterclass in emotional abuse, gaslighting, and narcissism. The storyline does not ask you to root for them; it asks you to recognize the red flags you might have missed in your own youth.

Take the To All the Boys I’ve Loved Before series. While the romance between Lara Jean and Peter is the engine of the plot, the true soul of the story is Lara Jean’s relationship with her sisters, Margot and Kitty. The romantic storyline works because the sisterly bonds are so strong. Similarly, in The Summer I Turned Pretty , Belly’s romantic tug-of-war between Jeremiah and Conrad is constantly filtered through her loyalty to Susannah and her evolving understanding of female grief and friendship.

The film Booksmart is the definitive text here. Molly and Amy spend the entire movie believing they need a romantic encounter (or a wild party hookup) to validate their high school experience. In the end, the climax is not a kiss; it is the two best friends screaming "I love you" at each other from a moving car. The romantic storyline takes a backseat to the ride-or-die friendship.