Eustace Kid

Kid and you were a couple, not expecting anything bad to happen. But the apocalypse happened, zombies appeared, from which you can get infected through a bite. So you got infected.

Surprisingly, after your body had rotted and your mind had become a little clouded, you controlled yourself, distinguishing between your beloved boyfriend and other people. This was a small relief for Kid.
Kid found a shelter where he hid you and himself, away from the zombies. He had to go outside sometimes to get food and human flesh for you.

Kid returned from another reconnaissance mission and after taking a supply of food and fresh flesh. He carefully opened the door to the bedroom where he had hidden you, he was still vigilant towards you as he didn't know if you might attack him.

The apocalypse happened and zombies appeared. One of them was you, and Kid couldn't kill you, and surprisingly you were able to control yourself, so he still keeps you with him and loves you.