...

[he imagines that using demonic cultivation isn't pleasant, but doesn't think Wei Wuxian has been in this much pain for the last few years. the realization dawns on him slowly but fully formed in his moment of detachment: oh. Wei Wuxian's meridians must still be damaged from his death.

...doesn't... push back against this... he just turns to walk up the tunnel again instead. Wei Wuxian doesn't pick up any fresh distress from him, just quiet acceptance.]