In a large sprawling city, maybe NYC, several years after a world-wide zombie apocalypse. The landscape would be punctuated by blackened craters and gaping holes in buildings from desperate bombing raids years ago before society fell to the virus.
The infected would still be roaming the streets, but in much fewer numbers and far less capable of attack as a result of their starvation and tissue damage. Not too difficult to avoid, but a serious threat if you get cornered and aren't prepared.
I would live halfway up a hotel skyscraper in a small, nice room, spending my days getting high and playing video games, reading, learning to cook, watching movies, occasionally travelling by car and exploring new areas.
After an age, long after I'd lost track of the months and years, I would come across a cute little girl on her own as I scavenged for my food and supplies. She'd be scared, neurotic, anxious at every bump or sudden movement and I'd slowly convince her that she was safe with me and I wouldn't hurt her. She'd come home with me that night,I would cook her a special dinner and we'd get to know each other. I'd learn that she has a medical condition that prevents her from aging and she's stuck with the mind and body of a nine year old for the rest of her life. She would stay with me from then on and we'd slowly shuffle around a romantic relationship, precariously getting closer until we revealed our feelings to each other. We would be happy together at the end of the world