[Papyrus starts shaking his head before Sans even finishes talking, dismissing the dismissal. He's not sure he could not-worry about it, right this moment, and he doesn't want to try yet. Not just yet. It feels like... he owes Sans this? Even if Sans doesn't want to think about it. Maybe especially because of that.]

No, I know that. I just...! [He tentatively shifts his arm out from under Sans's, reaches behind to bring his brother in for a half-hug. Tentatively, because he is still unnerved about it, after all these emotions - but mostly because his mechanical body's so much sturdier than bones ever were, and Sans is already so fragile, and Papyrus never, ever wants to feel what it's like being on the other side of this grief firsthand. Especially not... literally.] It keeps... happening. And you, you keep going away. Hiding, from how it hurts... I don't want you being alone here. Or anywhere.