I travel a lot for work by myself and basically enjoy it, but for me it is a bit of a respite from working where I need to be "on" for others all the time.
That said, I'm trying to psych myself up for a solo cruise, and I think I'm mostly worried about the dining. What do most of you do while you eat? I usually cruise lines that seat people with their own party, not strangers. Honestly, I'd rather not be foisted on someone but I don't want to eat in the buffet the whole time. On my business trips, I usually eat at more casual sit down restaurants where I don't feel wrid being on my phone or looking at a book or work papers. But that seems a bit gauche for the fancy restaurants on Celebrity and HAL (where I've usually cruised).
I don't have a problem having a drink or watching a show or live music by myself, but I feel really shy about the dining.
I don't know if this makes any difference, but I'm looking at cruises in Europe and Asia that will be pretty port-intensive.