Why?

All their friends whispered it behind their backs. Her parents asked each other as they lay in bed at night. His parents discussed it on the flight to their next destination. Mrs. Darbus muttered it to herself after rehearsal ended. Why? Why weren't the two of them together yet? When would they realize they were both crazy about each other? When would they see what everyone else saw? Would they ever clear through their fogs and see what was as clear as day to everyone else? Why hadn't the piano player and the choreographer done anything about their mutual attraction?