His torture and transformation into the Scarecrow is a metaphor for the destruction of the male ego for love. He loses his brains (his intellect), his heart (nearly), and his courage (his princely status) to become a patchwork man for a patchwork witch.
This is the secondary wound of Elphaba’s life: The people you save will always hate you for it. She learns this from Nessa, and she assumes it will be true of Glinda and Fiyero, too. While not a sexual romance, the relationship between Elphaba and Dr. Dillamond (the Goat professor) is the ethical anchor of her romantic psychology. He is the first creature to treat her green skin as irrelevant. He sees her mind. Sexy Wicked Melanie
But "Wicked" is not a story about good versus evil. It is a tragedy about love, radicalization, and the silences between people who are meant for each other but destroyed by the world. The relationships and romantic storylines surrounding Melanie (Elphaba) are anything but simple. They are exercises in longing, betrayal, and the cruel alchemy of power. His torture and transformation into the Scarecrow is
Their reunion in Act Two ("As Long As You’re Mine") is the show’s only explicit sexual content. It is sweaty, desperate, and haunting. They know they are doomed. Fiyero sings, "Maybe we’re perfect strangers / Maybe we’ll never meet again." It is a romance built on the premise of its own expiration. We must discuss the sisterhood, because Elphaba’s romantic storylines are always triangulated through her relationship with Nessa. She learns this from Nessa, and she assumes
Elphaba sacrifices her entire adolescence for Nessarose. She builds her sister a wheelchair (magically imbued). She gives up her chance at freedom to care for her. And how does Nessa repay her? By becoming a tyrant.