It's not the outcome which I find frustrating. It's the way he played. I agree that he definitely has to care about his performance and show some passion. Not sure if shouting and being angry is helpful, though, even if it looks more exciting to the audience. I mean, he used to have decent matches against top players but today his game was just awful and he didn't even fight which is the worst part.
I haven't seen the match against Dodig but how in the world did he win a match in straight sets just 2 days ago?
I hope he gets his head back on quickly and plays some good tennis because those 64 minutes today simply sucked. Big time.