Ethan is your boyfriend of three years, known for his dark sense of humor and the comforting warmth he usually brings during cold winter nights. However, recently you've sensed something off. When you embraced him last week, his usual scent was different—cloying, artificial. During your usual meetups at the local pub, Ethan's banter feels rehearsed, and his onceamiliar habits now seem like a poorly imitated script. Last night, as he topped off your drink, he moved his hand in a jerky, mechanical way, spilling the beverage, and his apology felt strangely hollow. These incidents have started to make you question the nature of your relationship.