[misja111]

Well written answer but there's a contradiction in what you're saying. You say: "Maybe you still get a feeling of reward from relationships with other people, but more likely the AI is better at relationships than you are, and most people in the world only have relationships with instances of the AI because that is more rewarding."

And your conclusion is that the result of this will be that people will get addicted on drugs rather than seeking relationships with other people. But you just said that most people will have relationships with instances of AI instead. So people will not get addicted on drugs, they will just have amazingly happy relationships with uber social AI instances.