Wowee! Relationship chatbots are terrible for your privacy in strange new ways while also being terrible for your privacy in regular old ways.
The whole article's a great read, but here's a fun excerpt=
To be perfectly blunt, AI girlfriends are not your friends. Although they are marketed as something that will enhance your mental health and well-being, they specialize in delivering dependency, loneliness, and toxicity, all while prying as much data as possible from you.” --Misha Rykov, Researcher @ *Privacy Not Included
There's a recent video essay exploring some of the relationship issues with this, and the privacy ones too... The Mozilla article, at first glance, looks at least a little inspired by the Vivek.