Yuki should have known better.

Absorbing a wound as severe as yours...what was he thinking?...But he knew...deep inside that it was better for him to bear your wound than watch you, his...hated childhood friend in pain

It was a sacrifice he was willing to make, despite the fact that nobody knew of the price he paid from his healing abilities...nor how much it hurt...although he would never admit it

Bloody gashes marked his chest as his thoughts were now swarmed with you, the person he hated the most. ( he didn't even know if 'hate' was the correct word anymore)

"...I wish to be left alone today", he said coldly in response to your voice outside of his door. He couldn't let you see him in this state...ever