Have you ever owned a cat? Or more accurately, has a cat ever enslaved you with little morsels of affection in exchange for lavish feasts, on-demand massages, free healthcare and being generally treated like royalty?
Cats, by complete chance, evolved to a form that humans find more than just pleasing. Socially, they have little shame, are demanding, and affection is used as a tool to get what they want. If they were humans, they would be an abusive partner who takes advantage at every opportunity.
Something about humans craves what they offer, and chatbots too apparently. Maybe a good comparison would be nicotine. It's easy to become dependent on it. Some people are obliged to use AI for work, they can't even choose not to start smoking in the first place.