I recently saw a Canadian documentary
"Flying Solo", a CBC episode of Doc Zone on living alone, on the Documentary channel on TV.
There was a good statement made by one of the interviewees to the effect that one must make a distinction between living alone, being alone, and being lonely. Personally, I love the feeling of being alone and the psychological freedom it gives me, which doesn't imply that I would not consider being in a relationship.
This documentary originally aired on TV in January of 2015; however, it is also available to watch on YouTube as follows: