Which statement best describes how romantic love, sexual desire, and attachment function in long-term relationships?

• A. Sexual desire is the only driver of long-term relationships.
• B. Attachment provides security; romantic love emphasizes closeness and passion; sexual desire focuses on arousal; all interact to sustain a long-term relationship.
• C. Romantic love leads to attachment, which eliminates sexual desire.
• D. Romantic love and sexual desire are the same thing.

Answer: (B)

In long-term relationships, three overlapping motivational systems work together: secure attachment, romantic love, and sexual desire. Attachment provides a sense of security and a safe base that helps partners trust each other and stay connected even through stress. Romantic love emphasizes closeness, emotional bonding, and passion, keeping the relationship valued and emotionally invested. Sexual desire centers on arousal and physical attraction, promoting ongoing intimacy. When these elements interact, they reinforce one another: security from attachment makes vulnerability and cooperation possible, romantic love sustains the emotional link, and desire fuels ongoing physical closeness. This integration helps explain how relationships endure over time, rather than relying on any single force.