How do i make up/get my best friend back ?

I known this girl now for 2 years , always been close, msn till 2am , talking and texting all the time , hanged round each others houses all the time watching DVDs etc. We spent so much time together , everyone asked are yu two going out . We used to like each other at first , but i gave her mixed feelings, and she said she wouldn't want a relationship now as she wouldn't want to leave me if things didnt work out. Basically she was like ma sister lol. We both started college this week, things were goin fine, though i was a complete idiot. We had a little fight , i got her angry , it was all my fault, as she was tryin to make loads of new mates in college , she didnt talk to me much , i kept saying dont leave me out , try to communicate with me also. Then from there it got into an arguement. The next day i had it in my head that she was to talk to me first this time, not me always starting conversation with her. Though when we catched the bus, i sat away from her, rather than next, didnt talk to her all day, and acted as if she wasnt there. Later on i couldnt take it anymore, i said fine you win, i cant take it no more. She said what do you mean , yu ignored me all day, i left you in your own little world, it was never a game, yu didnt want to talk to me so now im doing the same. After that things went down hill. She doesnt speak to me now , and if it is its just small talk, i keep saying sorry all the time , promised her i would never do it agen, i also keep telling her i love her soo much , and need you back , she's acting like she doesnt know me anymore. I keep asking her to go back to how it was before, i told her i would do anything. She just keeps saying move on , your acting desperate now, i cannot forgive but i can forget. I am so depressed at the moment , she is amazing at making new friends, though i am not. At the moment i have no proper mates anymore, and she has loads of new mates. How can i get her back ? I feel as if i lost half of myself, i love her too much , she is acting as if i am a complete stranger. Its tearing me to pieces, i cannot take it anymore. How can i get her back ? Any present to give her ? She is very stubborn and she says it will never be as it was before. But i want it to be sooo much. How do i get her back ? Please help meHow do i make up/get my best friend back ?
Just say i am really sorry for what i have done anything ever. And invite her over and take her to the movies or something......If she is a true friend she wouldn't do that but that is up to you not me

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