I tình yêu him, but my best friend loves him too.

Me and my bff started to like him about the same time. This guy đã đưa ý kiến he likes a girl, but he is too afraid to tell her. My bff thinks he was talking about me... and I promised her I'll never ever be with him, because I care thêm about her than any boy. She started to deny too that she feels anything about him anymore. But I know she still likes him.
Anyways, I don't know what's happened after that, because she started to act strange with me, like I was her enemy rather than her bff she's had for 9 years! We still talk, but... it's not the same. I wish I've never told her I like him! I never thought she would react this way.
What can I do? I want my best friend back. I know I can't have her and the boy I like at the same time, I am trying to ignore how I'm feeling about him, but she doesn't seem to get it. I want her back.
Please say what bạn think about this.
Thank you.