The groan was a good sign, that Blaise was still conscious. He would have been alright even if he'd lost consciousness, so far as Theodore could tell, but that he hadn't was very reassuring. When he finally staunched the flow and looked up, Theodore even noticed that Blaise was smirking.
"Enjoying yourself?" he asked, exasperatedly amused. He actually wouldn't have been entirely surprised if the answer was yes, considering how much Blaise seemed to like making other people bleed. But he had to be in pain, and yet - his expression.
Shaking his head, Theodore worked to bandage and clean him up, using a salve to reduce the pain a bit. After making sure that he hadn't missed anything, he shifted to hold a vial to Blaise's mouth, first a pain reliever and then a blood replenishing potion.