Search Results: afraid to make a move

So, to simplify for the sake of brevity, I became friends with her shortly after I moved three years ago, and about a year after that I developed a crush on her. I tried to flirt with her, we went on a couple of dates, and when I asked her to be my girlfriend she politely said no. It was obviously awkward for a bit after that, but we pulled through it. She is still one of my best friends, and normally I'd go to her with this question.
At this point, we are in our senior year of high school, and my parents are telling me that I should take her to prom as a friend. I don't think about her as more than a friend anymore, but I still feel uncomfortable with this for many reasons. First and foremost, I don't want to make things awkward between us again. She is my best friend and I really don't want to lose her. Second, I'm afraid that I might catch feelings for her again. I don't think that would happen, and I really hope it wouldn't be a problem, but I really don't want to risk that. The third and last major thing in my mind is that I honestly wouldn't want to go even if I had a girlfriend. I dislike a good chunk of my classmates, and am part if the group that wouldn't go if it was mandatory, so I wouldn't have many other friends there, anyways. Also, I don't want to be around that many teenagers where there will be, if past years are any indication, all kinds of drugs and booze affecting judgement.
So, with all of that, what is your opinion? Thank you in advance for any comments or responses.