According to research mentioned in this video, the key to a happy relationship is kindness. Happy couples speak to each other with gentleness, avoiding criticism, contempt, and sarcasm. While deeper issues like narcissism, trauma, and emotional barriers are significant, it's crucial not to overlook the basics of kindness, mutual respect, and empathy. These fundamental elements are essential for a strong, lasting relationship and should not be considered optional or secondary. Remembering to practice and expect kindness...