He hasn't been himself for the past few days after your death.

He sat out alone on the porch in silence, the sounds of birds chirping filled the air amidst the clear blue skies. He was thinking about of how couldn't he save you sooner. Kibutsuji Muzan and other demonkind may be no more, but at the cost of many lives. Including yours.

"It should've been me.." He whispered to himself. If only he wasn't weak. If only you were given the medicine instead of him..