I guess I went through "phases"
After my ex, I got my own apartment. It was nice having my own place to myself, but it was damn quiet and I spent all my time hanging out at the local bookstore instead.
I left that place after a year, and moved-in with an older woman roommate. It was nice to have company, and she kept to herself and whatever guy she was dating, but it was too cluttered for my taste. The clutter drove my nuts.
After a year of that, I got my own place again, and rented-out the spare room to a friend of mine after a few months. Now, I'm wishing I had the place back to myself.
It's tough to find a happy medium. When you have the place to yourself, you miss having someone around. When there's somebody ALWAYS there, you miss the time you had to yourself.
Just can't win.