I think Lonely avatars don’t necessarily have to be lonely people. In fact, I’m sure someone who isn’t lonely can actually, just by being happy, make others around them feel very lonely by comparison
Now I’m imagining a Breekon and Hope type of being that is just an overly happy couple that overshares and flaunts perfectly adequate pda, telling a story of how they met that is oddly similar to a circumstance the listener was in once but missed their chance, and leaves behind them a trail of sad and hopeful people who slowly fade away thinking about they could have had