"What Happened?" (내 눈을 의심해) is a song by South Korean boy group Golden Child. The lyrics convey the feelings of uncertainty and confusion that arise when falling in love. The song expresses the protagonist's struggle to understand their own emotions and how to communicate them to their love interest. The lyrics use the metaphor of doubting one's own eyes, indicating the protagonist's disbelief that someone they find attractive would reciprocate their feelings. They question how to express their emotions and wonder if actions speak louder than words in matters of the heart. The song portrays the protagonist's internal monologue as they navigate their growing feelings. They feel their heart racing whenever they see the person they are interested in, and they can't stop thinking and talking about them. The lyrics also highlight the protagonist's hesitance to approach their love interest, fearing rejection. Despite their doubts and insecurities, the protagonist decides to take small steps towards their love interest, hoping to gradually get closer without being too obvious. The song describes the protagonist's determination to play the "game" of love on their own, not relying on anyone else. Overall, "What Happened?" captures the complex emotions and experiences of falling in love, including doubts, uncertainties, and the fear of rejection. The lyrics showcase Golden Child's introspective and relatable perspective on romance.