I'm guessing that 85% of the miles I've put on my bike have been with my wing(wo)man Deb as we enjoy riding together and know how the other person rides. It takes a lot of my decision making out of the equation as I just have to go where she tells me, stop when she wants to and travel at her pace. I've probably got about 10% riding with other close friends or small groups (less than 4 bikes), 2% with larger groups (aka chasing Uncle Phil through Tennessee, West Virginia, Montana, Idaho & Washington) and perhaps 3% solo riding.
I did a 10 day, 5,500 mile solo ride across the southern US a couple of years ago and enjoyed the freedom to ride as far as I wanted to each day, get off anytime it suited me and set my own pace, but overall, I far prefer having Deb along with me to talk to at supper time and to relive the experiences of the day. Everybody is different and I'm just thankful I have a partner who is willing to put the miles on with me. During the winter of 2016-17, she started talking about switching over to a convertible sports car, but once we talked about it in more detail, we decided the better solution was to get her a lighter, lower bike that she could be more comfortable with, so after 340,000 km., we retired her ST and she got onto a CTX 700. 1 month later, we rode back to North Carolina then up the eastern seaboard to Maine before turning back west. It was about 9,000 miles in 30 days, so not as many miles/day, but I enjoyed it a lot more than the solo trip.