Paris reaction was as if he truly did not care yet he had to put on a show so other believed he wanted to marry Juliet, Lady Capulet was struck with pain and sadness given Juliet was her only child, Lord Capulet was struck with shock and did not know how or what to say, The nurse how ever had more emotion given she raised her from birth she was basically the mother to Juliet. Hope this helps, any question please feel free to message me.