Below is an analysis of this episode, alongside other notable media frequently associated with this specific title.
Laura Burney fakes her drowning to escape her obsessive husband, Martin.
While not an episode, the film Sleeping with the Enemy (1991) starring Julia Roberts is the definitive source of the "abusive husband/faked death" narrative.
While titled differently, this episode is often discussed alongside "Sleeping with the Enemy" themes because it features characters trapped in a town where they must ally with people they don't trust to survive supernatural threats.
The episode title refers to the uneasy alliances formed between formerly rival tribes and genders. Tensions rise as castaways must decide whether to stick with original tribal loyalties or forge new, "dangerous" connections to survive the vote.