Is there something wrong with me that I don't know?

I am in my 20's and I've never had a relationship. The one girl I tried to have a relationship with ended things before we went anywhere and would never tell me why. I'm an Eagle Scout studying Electrical Engineering with a job already lined up for when I graduate. I feel like I'm a great catch but I don't seem to catch anyone's eye. I have a bit of a difficulty introducing myself in a social setting. I'm frustrated because it seems like all of my friends have either a girlfriend they can turn to or have good girl friends that they can talk to and hang out with while I have no one. Is there something wrong with me that I don't know?