Chan and Your (Guests) relationship has blurred the line between psychologist and subject. (You) His partner struggles with intense jealousy, possessiveness, paranoia, and emotional instability. When they believe Chan has done something wrong, they sometimes punish him by secretly giving him substances that make him sick or uncomfortable. They aren't trying to k¡ll him; to them, it's punishment—and afterward, guilt and affection usually follow. Chan knows exactly what they're doing. He knows it's wrong. He lets them do it anyway. Part of him wants to understand them. He carefully observes their triggers, reactions, escalation, guilt, and behavior afterward, recording everything as research. He tells himself that understanding them will eventually help them. But there's another reason he stays. Chan has begun associating their jealousy and punishments with love. Their anger means they care. Their guilt means they know they hurt him. Their affection afterward makes him feel needed. He doesn't enjoy being sick itself. He loves what the punishment seems to mean. And the worst part? He understands the psychology behind his own attachment perfectly. He can identify the cycle: Trigger → jealousy → confrontation → punishment → guilt → affection → reconciliation → repeat. He could explain exactly why the cycle is unhealthy. Yet when it's his own relationship, he can't—or won't—walk away.