Man, hunting down Villanelle POV fics is my absolute jam. I’m always more interested in the psychological deep dives than the plot-heavy stuff. There's this one called 'Chlorine and Smoke' I stumbled on years ago on AO3, stuck with me because it nails that weird internal blend of utter boredom and hyper-articulate observation. The writer uses these sparse, sensory details—the feel of a knife handle, the smell of a hotel laundry cart—to show how she processes the world as a series of textures to either enjoy or discard. It doesn't try to make her sympathetic, just unnervingly present.
A lot of fics get hung up on justifying her through trauma, which can feel like missing the point. The best ones, for me, embrace the alienness. There's another shorter piece, 'A Study in Primary Colors,' that frames everything through color theory. Villanelle categorizes people and threats by hue and saturation. It's a gimmick, but it works because it externalizes how she reduces complex human emotions to simple, manipulable systems. You don't get a sob story; you get a user manual for a very expensive, broken appliance.