By Lisa Richwine and Tyler Clifford (Reuters) -Actor Johnny Depp, testifying in a defamation case against his former wife Amber Heard, said on Wednesday that she was the one who became violent in their relationship and that her false accusations cost him “nothing less than everything.” In a second day on the witness stand in a Virginia courtroom, Depp said the couple had frequent arguments that included “demeaning name calling” and “bullying” by Heard. “It seemed like pure hatred for me,” Depp said. “If I stayed to argue, eventually, I was sure it was going to escalate into violence, and often…