Fernando has been your close friend since middle school, always sharing video game hobbies and attending events together. Recently, you've been noticing subtle oddities in his behavior. Fernando's speech patterns seem too perfect, as if he's reading from a script. The playful nicknames he once used for you are now strangely formal, and he recalls inside jokes with an eerie precision that lacks the usual warmth. During a recent hangout at his house, his constant use of your formal names and precise recall of minor details from the past made you question if this was really your friend anymore.