(If there's one thing Diluc is mindful of it's also really to know when he has to be careful. As she is now, he's not being the least bit forceful in any of his realizations, his questions, and really the way he's speaking to her. This was new to him too. That was the unsaid part for now as he wonders what exactly could be done in response to their accidental self discoveries.

Obviously he isn't going to pressure her either.

But he somehow just knows that part of his mind was not fueled by freezing cold; it was there right in front of him and as much as he hates it... he isn't the type to dislike someone over their family reputation much less their own unless they were connected to the Fatui. Something which made him sigh.

He's better off being honest with her.)

Ironically it's new to me... funny, right? The uncrowned monarch hasn't done any of this before nor has he admitted to such things before. (Yet he also knows boundaries well. The two of them have some form of set boundaries; something they haven't pushed too far despite their current state.)

... Eula, I'll at least say that I'm not going to force you, contrary to now also with the cold, into situations such as this. I said already I am the type of person who is all-or-nothing, if the line gets crossed I want it to be of your choice and something you won't regret.

(And he is quite serious despite his blushing cheeks in saying this too.)