I wonder if how we feel about being single has a lot to do with the marriage we came out of? I know that I love being single mainly because I felt enslaved for 23 years. I was told what to do and when to do it. I worked all those years, but was told what I could buy and what money I could spend. I was not even allowed to make a late night run to the nearby convenience store for cokes etc, without permission.
So for me, I don't think I could ever get tired of being single. I will never get tired of making my own choices and decisions.
For someone else who is out of a marriage for a different reason, but the marriage was good for the most part, perhaps being single doesn't look so great.
Perhaps how we feel about being single has everything to do with the feelings we have about marriage. Whether it was a positive experience or a negative one.
I'd be interested in hearing others opinions about this.