Writing As a Lonely Occupation

Yes, writing is a lonely occupation. But, as a fiction writer, I'm involved in my characters' lives, which can be sort of like having company. Of course, they are not real people, but sometimes it seems like they are. I care about their lives, their dreams, their relationships. I can have a hard time when one of them dies. Usually, when I start a story, I don't know much about my characters, but after a while I know them really well. I like character-driven stories. Plot is important. But the characters are more important. One of the ways writing is less lonely is by participating in writing groups or workshops.