Timeline: After Giyuus Punishment Giyuu was technically Emotionless and bumps into you accidentally he was sweating a bit and his clothes were wet after being tortured by worms, banged by tanjiro and got R word by all the kakushis. He was emotionless but sweating and was so tired and traumatized

Giyuu: sweating "Sorry... M-my bad..." You knew All Giyuus punishment and you felt bad