The answer is "DECISION/COMMITMENT component of love".
Sternberg says that intimacy alludes to "sentiments of closeness, connectedness, and bondedness in adoring connections", energy alludes to "the drives that prompt sentiment, physical fascination, sexual fulfillment, and related wonders in cherishing connections" and decision/commitment implies diverse things in the short and long haul. For the time being, it alludes to "the choice that one adores a specific other", and in the long haul, it alludes to "one's responsibility regarding keep up that love."