Watch the Trump/Lester Holt interview (now being shown in snippets on CNN). In essence, Trump himself admits he was going to fire Comey regardless of any other input, Rosenstein's memo included. He then goes on to declare that at a dinner and on two phone calls (one initiated by Trump himself) he point blank asked Comey whether he (Trump) was under investigation, and that Comey said no. It was disgusting to see how Sarah Huckabee Sanders tried to defend the contradiction and her arrogant answers to the press corps.
As for hissy fits,
here's a good one.