By Nicola Fahey & Laura Armstrong Strictly star Giovanni Pernice has spoken about Amanda Abbington’s exit from the show for the first time, saying: “It’s a shame because, in my opinion, she could have gone all the way.” The pro dancer was partnered with Sherlock actress Amanda, 52, in the BBC dance contest last year. But she quit after just five weeks, citing “medical reasons”, and later went on to claim that she suffered PTSD after the show. Giovanni, 33, who was backed by the BBC in the row, insists that he only ever acted in Amanda’s best interest. Speaking on our Invite Only podcast alongs…