Chloe - — Season 1eps6

: Becky finds a never-sent letter from Chloe apologizing for their falling out. The letter reveals that the "you" in Chloe’s final cryptic social media post ("to die by your side is such a heavenly way to die") was actually a nod to Becky and their shared childhood bond, not a romantic partner.

The series finale leaves the exact nature of Chloe's death intentionally ambiguous, though it heavily implicates Elliot's coercive control. Chloe - Season 1Eps6

: Becky discovers that Chloe was far from the perfect wife; she was secretly taking birth control to avoid having Elliot’s child and had stashed cash and a key to a secret caravan to escape his controlling behavior. : Becky finds a never-sent letter from Chloe