I just want more and more solitude.

I keep wanting to be alone. Just relaxing while doing my hobbies, and It's been like that since I was a little kid. Instead of being with others, I would deliberately sit by myself doing a puzzle or something. But now that I'm grown up, I've been getting judged for it. And I'm not sure how to take it. On one hand I get sad about it, but on the other, I just want to be alone more.