No Vacancies on My Island
There's a big difference between being lonely and being alone.
I think we are sometimes socialized to believe that the two are a package deal--you can't have one without the other.
The problem is that there are many people throughout history who were alone. I'm not talking about people who lived a solitary life without children or spouses or some circle of friends; I'm speaking about a higher level of social belonging (or lack thereof).
You can not, however, find any evidence that they ever felt "lonely".
That's all I wanted to say about that.