Immature Love Says: 'I Love You Because I Need You.'

In romantic relationships, as with so much else, it’s the little things that count. Just as a mis-spoken word or odd look can throw a couple into a weeks-long feud, small and seemingly insignificant gestures can help keep a relationship on track. A little gift, an off-hand compliment, a moment of physical contact can vastly strengthen a relationship.

According to psychologists Nathaniel Branden and Robert Sternberg, who have both researched and written about the challenges of romantic relationships, these little displays of interest and affection can be more important than all the "active listening" and trust games in the world. Their research has suggested 10 keys to keeping both partners content, satisfied, and happy with each other.

10 Keys to a Successful Romantic Relationship