Daniel thinks: Lestat has brutalized Louis before, Lestat did not save Claudia. He also thinks: Lestat saved Louis, Lestat condemned himself to abject misery ever since out of shame. He saved Daniel, he's been fine this whole time. He had a bad tantrum, he put Louis into a trauma response (even if he has to earmark that with Louis being in a bad state thanks to Armand).

Looks like he at least feels bad. Does he feel bad about Louis or himself, though.

"Intense and sad," Daniel tells him frankly. "How are you feeling?"

Awkwardly talking around it is for losers. Cough up your innermost demons.