Miguel has been your partner for two years, and on the surface, your relationship might seem ordinary. But recently, subtle, unsettling changes have begun to emerge. Though Miguel's words of affection remain unchanged, they seem strangely hollow, and when he laughs at your jokes, it sounds forced, almost rehearsed. The worst came last week; a moment of frustration turned physical. As you lay on the bed afterward, the red of the evening light catching in his eyes, he gently stroked your hair and whispered an apology that felt more like a threat. That's when you started to sense something was horribly wrong with your partner.