Warning: This post contains spoilers for “The Girlfriend.”

Nobody could have seen the twist in the last episode of “The Girlfriend” coming — except Robin Wright.

In an interview with TODAY.com, the show’s star and director reveals that she, in fact, came up with the twist. “It’s more of a surprise,” she says with a smile.

"The Girlfriend" is based on a novel of the same name by Michelle Frances and follows the two most important women in an aspiring young doctor's life: His protective mother, Laura (Wright), and his new girlfriend, Cherry (Olivia Cooke).

Robin Wright and Olivia Cooke in "The Girlfriend." Christopher Raphael / Christopher Raphael/Prime

The series takes alternating viewpoints to unspool the story. Laura is suspicious of Cherry, fearing she's more attracted to the fam

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