The term "happy couple" refers to a pair of individuals who are in a romantic relationship and are content with each other's company. They share love, affection, trust, respect, and understanding towards one another. These two people make an effort to maintain their bond by spending quality time together, communicating openly, supporting each other through thick and thin, and working on any issues that may arise in the relationship. In short, a happy couple is a pair of individuals who are deeply in love with each other and live harmoniously as partners.