[her eyes flit down to the ground beneath Kylo as it cracks, but she quickly returns her focus to his face. She isn't about to comment on his obvious reaction, because she already knows the reason for it, and feels bad enough for bringing it up in the first place.]

Is he aware?

[because well. She never bothered to check, she doesn't want to talk to Anakin enough to bother checking if he knows the consequences of this world. But to clarify--]

If he doesn't believe in it, that's his own stupidity at work. And I have no concern for his well-being, but if knowledge of that is enough to deter him, then he should be made aware. He certainly didn't seem to care about any consequences to his actions earlier.