Limerence, a term coined by psychologist Dorothy Tennov, describes an intense state of infatuation characterized by intrusive thoughts and a strong desire for emotional reciprocation. Unlike love, which grows with familiarity, limerence often thrives on uncertainty and imagined possibilities, even without a real relationship. Key features include replaying conversations, seeking meaning in small gestures, and experiencing mood swings based on perceived responses, with a consuming need for reassurance that the feeling is returned.