I hope to god they don't leave the zoo next chapter so they can talk more there. This is how I want it to play out.
He'll confront her about what's up,
she'll eventually mention something about not wanting to keep him out of the light,
he'll then without a word grab her by the arm and drag her around until they find animals that are nocturnal,
he'll then explain that there are some things you can never see in the light and how forcing him to live in the light will take away just as much as if he stayed in the dark,
she'll be in awe of him and while she is starting at him he'll become self conscious and start to flounder,
she'll laugh and then in one of her softer moments hug him and say how he's her reason for wanting to stay in this town (callback to his words this chapter).