By Jessica Gibb Meghan Markle is thought to have already given her verdict on a trip to the UK in May – and it’s not looking good, according to a royal expert. The Duke of Sussex will return to his homeland at the beginning of May as he attends a celebration of ten years of the Invictus Games. His visit is set to include a special service at St. Paul’s Cathedral on May 8 but Meghan’s attendance at the event is still ‘to be confirmed’. Meghan is always at Harry’s side for Invictus events, holding his hand, waving to crowds and hugging participants as she brings her brand of friendly American ch…