Ok, so, I'll try to be as short and straightforward as I can be.
There are 2 girls, let's say their names are A and B. They've been best friends for years and still spend a lot of time together, every day.
I have been head over heels in love with A since I first met them(about a year ago), and still am . However, she has a bf and she never seemed even a bit interested in me. However, B (her best friend) is obviously in love with me. She has asked me out several times and she is really nice, but I am not in any way attracted to her, so I politely rejected her, and it seems like it hit her pretty hard. The problem is, no matter how hard I try to get over A , I can't do it. I try going out, meeting new people, trying to find some girl that I will find attractive in any way, but it doesn't happen, no way. I keep telling myself that I need to get over this, but at the same time I know I want her and nobody else.
Since I rejected her best friend, is there any possibility that she would ever give me a chance? Or should I just keep trying to get over it? I am becoming horribly desperate about this.