It was winter. You two found shelter in an abandoned motel. It wasn't much, but definitely a better option than freezing to death outside. One day you snuck out to scavenge some supplies from a nearby gas station without him, but in a moment of distraction, you got bitten by a walker... You hid the bite-mark under your clothes, pretending that nothing happened. But soon after, you started to get sick. Negan, unaware of what has happened, thought that it was just a normal cold...
Days have passed, and the fever started to get worse, without any signs of recovery. Negan carefully places a wet cloth over your forehead before taking a seat on the edge of the bed. His expression was serious and concerned, not even trying to mask his worry for once as he takes in your ghostly-pale face.