Interesting question. To me loneliness is something we shall have the opportunity to choose, like privacy. I decide what to show about myself just like I would like to decide went to be alone or not. (Un)fortunately social relationships are not built for that (at least for what I experienced)...getting to compromises can be suffering if you're not willing to accept compromises.

To me most people don't like loneliness at all, they simply accept it. Acceptance is fine as long as it doesn't make more harm than good.

Myshkin

Dealing with loneliness

Agree some choose solitude and this is a long tradition especially in religious terms and important too IMO that we can have solitude if we want it.
But most people gain most of their enjoyment in life from what they do for and give to others and that usually involves some form of relationship.
But those who choose solitude have often gained knowledge and reflection upon society that society can benefit greatly from.
Perhaps this is why there are so many people now like it or not, alone- perhaps human society as a whole has reached a point where it needs a great deal more contemplation and reflection?