I had the same experience when I first started working remotely, I would go a couple of days in a row without talking to anybody at work because everyone had there own thing they were working on. Another coworker left his remote job after 7 months because he felt so lonely that he ended up working at bars and coffee shops with free wifi just so he could have normal human interaction. I'm at a new remote job, and my solution to loneliness has been hanging around in smaller twitch channels talking to streamers and regular viewers. I get less work done, but I don't feel like a miserable piece of a machine now.