Wow - okay. For starters DENY it - or turn it into a ****y/funny.
Honestly man, this should be a lesson learned. NO MATTER WHAT, your intentions with other girls should be kept to yourself. I do not care how much of a close friend somebody is, keep personal things personal. I guess now that you are in that situation, you are stuck in a hole.. you cannot really get out.
Move on, find a new girl. Best advice you will get here. I mean, she would reply back to you if she felt the same way.. but now that you told her you like her, I doubt she has feelings for you, if she had even the slightest feelings back.
Sorry man.