(And this is how it dawns on him. While he keeps his calm, it's impossible for him to truly hide it. His expression still drops the moment he sees Aki's the face, the moment he hears him, and tries to wipe away those tears, leans in to press his forehead to his and try to soothe him. He doesn't mind the way Aki holds him. Even if it hurts, he knows it's only a fraction of what he feels.

The gun devil. Becoming a fiend. Being killed by Denji. He's heard enough.)

And now you're home. You're here again.

(He has no idea how this works actually but he wants to remind Aki where he is. It's important to keep him grounded and he speaks calmly,)

Aki-kun, look at me. (He doesn't want Aki to panic. He doesn't want him to spiral and get worse. He has to keep his head above the water so to speak,) You're here.

(And he gives him a gentle tug, urging him to come closer,)

Tell me what's on your mind.

(He turns his wrist in Aki's hand so he can hold his hand, let his fingers trace his ring,)

Or if your heart is too heavy... you can share it with me.

(And he kisses his forehead softly. He'll only intrude if Aki allows it.)