what do i do? Im a 14 year old guy.?

i'm 14. in 8th grade... so yeah i know this may come off stupid...

me and this girl ( lets call her nicole) have become best friends this year.... In march, i asked her out and was told:

"ok heres the thing.... ur my best friend n i like u alot but not the same way you like me. ur an amazing friend and i dnt wanna hurt you. i dnt kno wat i would do without a friend as amazing as you."

so i backed off.

then, i asked her to this dance that we are having. and again got a no.

then yesterday, my mom who is friends with her mom told me that her mom said that me and nicole both like each other. and when i asked nicole about it, she played it off.

today, she came up to me and reminded me that we had a deal that if we were both single for the dance we would go together. I had forgotten all about it. and SHE brought it up... she now has untill friday to find some1 else, and i have told her that. she seems to act like she's in a hurry to find some1, but isnt really looking.

I told my friend (who is a girl) the situation. she told me that there was no doubt in her mind that she likes me....

so What do i do? do i back off? do i talk to her? i dont know what to do.