It’s odd, because Quirrell went so far out of his way to appear to be dying. He set himself up to be caught drinking unicorn’s blood. So it’s very strange for him to give that away.
Well, if he’s faking the illness, he doesn’t require unicorn’s blood. Therefore he set up the situation with the unicorn, so that Harry would find him, and know he was dying.
It’s odd, because Quirrell went so far out of his way to appear to be dying. He set himself up to be caught drinking unicorn’s blood. So it’s very strange for him to give that away.
To be caught?
Well, if he’s faking the illness, he doesn’t require unicorn’s blood. Therefore he set up the situation with the unicorn, so that Harry would find him, and know he was dying.