In the "About Me" section of your profile you have posted your gender and your home state.
If you are concerned he might figure out who you are, change your gender, post a few few pictures of yourself (find some anonymous dude on the internet) describe you interests as stereotypical guy stuff and change your location to a different state, or even a different country.
If you are worried he will figure out who you are by your user name, register again with something completely random. You can be very anonymous if you choose to be.