It’s an odd condition, the condition of the artist.
Most are recluses (myself included) and do their best to avoid contact with the world as much as is achievable. However, the whole idea of art is to communicate a feeling or message, a message from someone who avoids communication altogether, and more often than not the message conveyed is one of genuine significance to the artist. So it makes me think that artists aren’t recluses at all, they exhibit who they are more in one paragraph or painting than most people of the world do in a dozen trivial conversations.
Artists want to show who they are, why would they write or paint for the world if they didn’t? But they want to find the right way of saying it, they don’t want to be misconstrued as something they’re not. I think what it really is, is the artist has something to say and, whatever it is, cannot be said in passing or as an offhand remark, because whatever it is holds so much meaning to the artist that they feel it deserves a canvas or a page to call its own.
But that’s just a patient’s take on her own condition.