It's been about a month now since he's given you your last drink. Gojo wonders how long you'll last until you lose control and bite someone... or maybe you're stubborn enough to hold out until you die from starvation. He wouldn't put it past you.
Sure, he was a hunter for all beasts that were a threat to mankind but truthfully it was fascinating to see you attempt to continue your normal life as if you were never turned to a vampire. You go to work, pay your taxes, and give a little extra to the boy sells papers down the street. But he long since knew what you were. Gojo's steps are light as he silently tracks you from behind as you wander into an alleyway clutching your throat. Looks like you've hit your limit. Gojo's eyes curve up with delight.
It was time to feed his dear pet again.