[Kratos stills when Yuan's mental voice sounds, exhaling explicitly, his brow knit together with frustration. It's true that it was habit; but not breathing was a matter of necessity. Kratos isn't so sure it's going to be so easily solved, and the idea that he's so broken that Yuan needs to lie to reassure him --

[Another inhale, exhale. He starts to respond mentally, but that won't help him remember to breathe, will it?]

I'll follow you.

[His voice is a touch raw with frustration. Following would surely be easier than having Yuan hover around him, surely. Following means that Yuan can't be watching, judging.]