OK I've known this girl for about a year know and we became best friends in a really short time but after a while I realized I like liked her and after another while I realized I love her told her that I wanted to date her she said she did too but she couldn't she had a boyfriend but I kept being her friend after a while I thought she was over me but I wasn't over her so I thought that the only way too get over her was to get a girlfriend but after that I get a call from her best friend saying that she was going too dump her boyfriend for me but she found out that I asked another girl out got pissed and isn't going too anymore and even though the other girl dumped me she still won't, I didn't mean too hurt her I didn't even know bottom line is I love her, I need her and I've earned and deserved the opportunity anyway how do I make this right because I repeat
I love her!!

This girl doesn't seem very nice. She simply dumped her current boyfriend because something 'better' came along? (not implying that your not better)

If you had dated her, what's to stop her from dumping you simply because something 'better' came along again?

This girl seems unstable to me and your better off moving on. It will be hard but you can do it.