I ride predominantly on my own now that most of my old riding buddies have started families.
I don’t mind it, as I am not a big talker when out riding, but prefer riding with a friend or two, any more than that and it becomes less enjoyable (mainly the risk of punctures – a binomial distribution and all that!)
Going out with others is a big motivator though. When really into road riding I would be out on the bike at 8am all through the winter to meet my riding partner for 8-30. Even today it was 9-30 and yesterday nearer to 10.
Very rarely ride in the afternoon, if I don’t get out in the morning, then all hope is lost for that day.