I see this all the time, especially in dark romance or mafia-adjacent stories, but honestly, the most unsettling signs are rarely the loud, dramatic ones. It’s the subtle control that escalates. Like, a character who ‘just’ wants all your passwords, not because they don’t trust you, but because the world is a dangerous place and they need to keep you safe. That’s the line that always gets me. The rationale always starts with protection.
Then there’s the isolation, framed as ‘they don’t understand our love.’ The main character finds themselves drifting from friends because their partner is always ‘hurt’ or ‘disappointed’ by the time spent elsewhere. It’s not a direct ban; it’s a slow, emotional tax on every outside connection until it’s easier to just stay home.
Material gifts become markers of ownership, too. Not ‘I bought you this because you liked it,’ but ‘wear this, drive this, live here’—the gifts come with invisible strings that tether the recipient to the giver’s taste and territory. The final red flag for me in plots is when a character’s internal monologue stops questioning the behavior and starts justifying it, absorbing the possessiveness as proof of passion.