By Scarlett O’Toole Prince Harry is on the cusp of a fresh crisis as one of his former friends has threatened to release a damning letter about his “victim” mentality. The Duke of Sussex has been described as “the furthest thing from a victim” as his former pal urged Harry to “get over yourself”. While the letter is yet to be released, it could soon be made public and bring with it a fresh crisis for Harry. In his debut memoir Spare, Harry made a number of attacks against several members of the Royal Family. He detailed the breakdown of his relationship with his brother Prince William and clai…