Hi.... I'm not single, but ended up taking a vacation alone once as the girlfriend who was to go with me had an emergency. I found it to be scary, then calming and by the end of the week, I had more invitations for lunch and dinner then I knew what to do with. I'm sure once you get there and learn the lay of the land, you will be surprised how easy it is to meet people.
When you do get there, don't just sit in your villa... Get out there and see what it's about! I used to travel and so many people would order room service and never see the town they were in... Make yourself get out there!!! You will be glad you did!
I would also guess, there will be people on here who will be happy to show you the ropes... so to speak!
The main thing is to get down there and check it out!!!
And most of all... Have fun!