It would be nice to have a lifelong partner, but there are a lot of if's because not all relationships are happy ones. When I visited a senior center a while back, there were lots of widows and widowers, and it brings up the question, is it better to have loved and lost than never to have loved at all? It's got to leave a heck of a void to have loved and lost a lifelong partner. If you are alone the greater part of your life you tend to get used to it.
I think it is 'better to have loved and lost than to have never loved at all'. Since in my mind, love, of many sorts (friends, lovers, family, pets) is just such a huge part of living. Just about all of it, in fact, in my mind. Of course, having a satisfying productive occupation matters, too.
Another aspect of it is that there seems to always be some 'loss' involved in love, anyway. That's a given. I think the 'winning' part of having loved is just having had the love, even if it has gone away, and you're left just with fond memories.
On the partner question, what I want now is a girl friend I am comfortable with, who doesn't want to get married, and who doesn't want to move in with me.
Have been in the hunt for about 6 months, I guess. It is a tough slog, man, and yes, being alone and not having that slog would kind of be a relief, but I think I really want to keep looking for my unicorn. lol.
Like someone here mentioned already, we are pretty complex people at our age, and meeting someone who is an exact match seems impossible, and meeting someone one can just be 'comfortable' with becomes a 'win', lol.