He's Asking me Out?!

Okay.. I'm pretty sure you guys already have an idea about what I'm about to talk about in this blog entry. Yeah.. he's asking me out. A guy in my class confessed and even gave me roses. I don't know whether I should be happy or not. I'm not really... attracted to him. No offense okay? I think of him as someone who acts as if as he's handsome but in reality, he's not. You know.. the so-called FEELER? I don't have any feelings for him at all. I didn't want to crush his heart by rejecting the flowers.. Before I could respond to his confession, he immediately said. "Just think about it. I'll wait for your answer nex time.". That's what he said. Actually, it's not exactly what he said.. I just translated it into English. :D
Now... I don't know what to tell him. I don;t know how I should respond to him without totally crushing his heart. :(