My boyfriend likes me alot, but I dont feel the same way. Help!?

I'm 13 and me and my boyfriend have been going out for a week, and he REALLY likes me.. a lot. But I dont feel the same way. We're in the same class so it's also REALLY awkward. I've been stressing about this for days.. I dont think its fair to him to lead him on. I'm so confused. Should I break up with him and tell him I just wanna be friends? And will he want to be friends after I do this?
Also, I'm scared my class will hate me if I break up with him.. as well as him. : /