One vote decided whether a promise meant anything inside the castle. And whether friendship mattered more than survival.

In the final moments of the latest UK series of ‘The Traitors’, Stephen Libby faced a clean, brutal choice. Break his pact with fellow traitor Rachel Duffy, or write off the last faithful standing, Jack Butler, who had become his real friend. What happened next turned a three-week paranoia marathon into a loyalty story, with a cash receipt attached.

The last vote: friend out, pact intact

The BBC reports that the finale boiled down to three players at the final vote, with Libby ultimately voting out Butler. Libby told Duffy, “I couldn’t go back on my word to you,” sealing a two-traitor win and a split of the 95,750 prize. The full outcome and key moments were detailed in the BBC’s write-up of the finale, which includes spoilers and the on-camera quotes from the endgame players and host Claudia Winkleman.

It is the kind of ending the format is built to tempt people away from, the classic “turn on your partner at the finish line” move. Instead, Libby and Duffy took the less obvious route for traitors. They stayed paired, stayed undetected, and stayed paid.

The numbers that make execs lean in

The ending did not just land in group chats. It landed in the ratings.

According to the BBC, more than nine million people tuned in to the finale, making it the most-watched episode of the civilian version of the show. The overnight audience was reported to peak at 9.6m during the final moments, which the BBC noted was the UK’s biggest overnight audience since the ‘Celebrity Traitors’ final in November, which attracted an average audience of 11.1m.

For a reality competition built on slow-burn suspicion and long, circular arguments at a round table, that kind of reach is a power signal. It says the format is still converting casual viewers into “I have to see the ending live” viewers, even after multiple seasons have trained the audience on the tricks.

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