I love travelling alone. And I love travelling in company, provided it's the right company.
I've always been quite good at making connections with people, so I don't generally find myself alone for all that long - I did a lot of business travelling in the 1990s, and always ended up having a good natter with someone, male or female, wherever I was staying. I'd like to think that still applies, and I am seriously thinking about taking myself off for a solo holiday somewhere this summer, just to go and Do Stuff, and see who I might meet in the process.
What's not so fun is when you get somewhere, and there really isn't ANYONE, then 4 or 5 days in an unfamiliar place, without any kind of connection, can start to feel lonely.