Confidence is easy to fake, and Krennic is the sort of person who would fake it til he makes it. That pretty much sums up his entire life. And he probably knows that she knows about his demons by now, since he had divulged to her not only his recent achievement (which is classified information) but also his personal feelings towards his boss, and also how easy it is to destroy a planet from space from onboard the Star of Death. Things like that. Good bonding moment.

He was surprised at that, though. For a moment he seemed to be at loss for words. Then he remembered that people usually showed sympathy of sorts when someone else said something like that. "That's good," he ventured. "I won't think it's fun either. And...I'm sorry to hear that."

It sounds genuine enough, at least. Krennic's a little out of practise, but he kind of likes her (sexual attraction aside) so it was a little genuine. Sort of.

"Yes, I know," he said, pulling away from her just to finish his drink in a large gulp. "I used to have one. A very special friend indeed."