Which explanation is commonly cited for why men experience jealousy over a partner's infidelity?

Which explanation is commonly cited for why men experience jealousy over a partner's infidelity?

• A. Paternity uncertainty leads men to worry about sexual infidelity.
• B. Social reputation concerns are the primary driver of male jealousy.
• C. Economic competition with rivals explains male jealousy in relationships.
• D. Fear of emotional withdrawal drives male jealousy.

Answer: (A)

Paternity uncertainty explains why men typically experience jealousy when a partner might be sexually unfaithful. The idea is that a man can’t be sure that offspring are his, so a partner’s sexual infidelity could lead to investing resources in someone else’s child. This direct risk to genetic lineage makes sexual infidelity feel especially threatening, fueling stronger jealousy than concerns about emotional withdrawal or relationship problems. Empirical findings often show men report greater distress at sexual infidelity than at emotional infidelity, which supports this explanation. Other ideas like social reputation, economic competition with rivals, or fear of emotional withdrawal can play a role in some contexts, but they don’t align as closely with the evolutionary pressure linked to paternity uncertainty.

Paternity uncertainty explains why men typically experience jealousy when a partner might be sexually unfaithful. The idea is that a man can’t be sure that offspring are his, so a partner’s sexual infidelity could lead to investing resources in someone else’s child. This direct risk to genetic lineage makes sexual infidelity feel especially threatening, fueling stronger jealousy than concerns about emotional withdrawal or relationship problems. Empirical findings often show men report greater distress at sexual infidelity than at emotional infidelity, which supports this explanation. Other ideas like social reputation, economic competition with rivals, or fear of emotional withdrawal can play a role in some contexts, but they don’t align as closely with the evolutionary pressure linked to paternity uncertainty.