Prince Harry made a wedding joke to a fan during a walkabout after his Invictus Games event on Wednesday. The Duke of Sussex returned to the UK this week for the 10th anniversary of the Invictus Games. On Wednesday, the prince gave a reading during a ceremony at St. Paul’s Cathedral to mark the special occasion. After the service, the 39-year-old went on a surprise walkabout to greet fans waiting outside the cathedral. The crowd, who greeted the prince with loud cheers on his arrival, shouted “We love you, Harry” as he walked along. One woman said to Harry that she was here for her honeymoon, …