I live alone, but am happy to do so. I don't get lonely as such, but occasionally am at a loose end, say if the weather is awful and I'm a bit stuck indoors, things like that.
All my family is coupled up with kids and grandkids. I look on it as the choice I made not to marry or have kids and focus on the freedom and financial benefits that brings. But very occasionally I do feel a bit meh. Not for long though as I count the positives!
I'm older now and realise that the lives of others is not always what I think it is and is rarely something to be envious about. Every kind of lifestyle has its pluses and minuses my own included.
I love the freedom of the single life though. Nobody whingeing, no endless dinners to cook on rotation, no washing machine going three times a day, endless clean ups, no poorly children, no school runs, and the best of all is NO Nativity play. Sorry bout that!
On the other hand I love children. Adore their little ways and the love they show. I enjoy all my N+Ns but quite honestly I am glad their presence in my life is transitory. Glad to hand them back!
Sorry for going on OP. I suppose I'm just saying that yes, there are times of the day, month and year when feelings of isolation can hit. It doesn't last forever, and try and focus on the positives.