"I don't want to talk about it," Hinata clarifies firmly with enough grit in his voice to push the notion that it's a conversation he does not need to have—especially at a point where his head is a mess and any convincing from a third person would influence his thoughts easily.
What he needs is enough time to get his mind off useless thoughts that would only bombard his mind and ruin his day where he doesn't need it to be any worse.
Hinata forces any traitorous thoughts out of his head before they dare to leave him in a mess under broad daylight.
With only a sigh, he does not say anything else, knowing she only means well.
Izna nods in acknowledgement to his words, not saying anything else or even an apology, letting her words sink into the environment without needing another reminder for it.