But that isn't the point. The user would know that the arc was programmed in. Loneliness is the absence of the esteem of your community. You cannot get the esteem of the people around you by interacting with a non-person with no free ability to reject you, no matter how elaborate the simulation or how intelligent the non-person entity.

As long as an AI is constructed as a tool for a specific end under the control of people it cannot meet the real social needs of humans.