Please...Is anyone out there that can help? I need someone to talk to...?

[Truck]

There's a girl...we'll name her Elena...about 6 months ago used to be crazy about me. I was a senior in high school and she was a sophmore. Well she asked me to a dance and apparently started to really like me. I liked her too, but not nearly as much as she liked me at the time. She was kind of clingly so it turned me off from her and then she wrote me a love letter after our first 'date'. That made me really awkward because I've never had a girl tell me such strong words. I, like an idiot, ignored her and avoided her at times. I can't believe how I was acting...I was so shallow and so greedy...Well now that I've graduated I've realized that high school meant nothing...She is really an awesome girl and I'm missing her like no other now...I've talked to her and she told me that her emotions aren't the same but she is willing to give it another shot...I'm so depressed because of how I acted...I'm an emotional trainwreck and I just really wish I could reverse time...What can I do to ease this pain? Listening to country music (my main genre) only makes me cry...How can I get her to love me back? I realize what I did was wrong and that it's more than enough to make her hate me but I'm just a mess here people...I need help.