Taboo relationships thrive on secrets. When a betrayal happens in the dark, the impact is magnified. The audience feels the claustrophobia of the characters, wondering: If they tell the truth, do they destroy themselves along with the traitor?
Both parties go down together, unable to exist without the secret but unable to live with the betrayal. the betrayal between them pure taboo
In a standard betrayal, moving on is the goal. In a taboo betrayal, there is often nowhere to go. The social circle is too small, or the bond is too deep. This creates a "pressure cooker" environment that leads to explosive drama. Taboo relationships thrive on secrets