Transcription: Hello, I'll be helping you identify some important aspects of how you experience romantic love. That most powerful, mysterious and unpredictable of human emotions. Modern science has helped us to unravel some of these very puzzling elements. Researchers have found that thoughts and feelings set the tone for our romantic relationships. Now in a moment I'll present a simple test comprising 20 questions which covers some thoughts, feelings and behaviours that people may experience when they're in love. When responding, think of the person you're in a romantic loving relationship with right now. I ...