Theres this guy that likes me, I need help?

This one guy says I had a crush on him last year, and my friends apparently remember him, so that obviously makes me feel bad. But he has asked me out five or something times and I dont know.. sometimes I actually start to like him, but then my friend goes *Oooh, dorks in love* or he says something stupid like *Whats this persons last name? I want to add them on myspace because I feel alone* What should I do?