I've always went to concerts with groups of people. And by groups, I mean about 4-5 people. I have a blast when I go with friends or family. I don't think I could go by myself. But that's just me. If I did go with a friend, say a guy, I would feel it would be more of a date than just going with a friend. Because nobody wants to be 'just friends' anymore it seems. So I think going with a couple of awesome people is best for me. You shouldn't let anything stop you from doing what you want to do or see. I am just stuck in my comfort zone.