Oh, this popped up again. I saw the thread on the weekend but did not have time to read or post, even if I felt I wanted to share my experience.
I am 31 years old, and I am a lonely gamer too. I don't have many close friends to begin with, and they do not play video games anymore. Most of them like to say they just don't have the time because they have kids. Sometimes it feels like they actually mean that they have reached the next level on "game of life" and don't care about video games anymore. Like when they say "I wish I had the time to play videogames like you do", I hear "Oh poor you still stuck in your youth, look at me I have moved on".
Me and my wife are still just the two of us (and a dog) and she works evening shifts quite a lot, so I have a lot of time on my hands. Between work, gym, household chores and taking care of the dog, I usually end up with at least two or three hours of free time every day. Also we moved into a different town to chase a job, and we left our friends behind in a geographical sense.
So I play games. Mostly alone, or with strangers or semi-strangers online. Here's the thing though. If I could, I would give away my huge amounts of free time to play video games, for not being so lonely and not having to live in an empty house for most nights.