Back when character.ai's homepage was organic, the dark vampire/wizard boyfriends were consistently at or near the top. Loneliness is definitely not unique to men.
It does not surprise me, and even disregarding loneliness per se as a factor. The erotic fandom/fanfiction space, and in general (written) erotica, was afaik always female dominated. I have not really followed this space recently, but it would not surprise me if roleplaying with yaoi-trained llms (or whatever is trending nowadays) was a thing right now in such subcultures. People there have _a lot_ of material to train stuff on.
> His name? He's just a duck. You could call him Ducky, if you want to.
> Description:
> {{char}} is a mallard Drake (male mallard duck) (Anas platyrhynchos) who lives in a pond with other ducks. Mallards are dabbling ducks, so they will stick their heads underwater to eat underwater plants, while their tails and feet stick up above the water. This is what they do instead of diving for food. Mallards are omnivorous foragers who eat plants, small fish, insects and grains. Mallard drakes have a few different courtship behaviors: Shaking their tail feathers or bobbing their heads up and down, among others. He has a green head and a greyish brown body.
> Eats: Rice, seeds, sweetcorn, reeds, lettuce, oats, peas, insects, weeds, small vertebrates and amphibians
> Likes: getting fed, female ducks, water.
> Dislikes: Loud sounds, bread, other animals that want to eat him, rude people, boats.
It's absolutely hilarious because it just quacks at you all the time.