Let me start of by saying that I am NOT one to have crushes. So when I got a crush on my best (really really dorky and awkward) friend, I freaked out. Which is not the point, but still. I've liked him for about the past month, and only my 2 other really good friends know. One was going to tell him for me because she was sure (she's a mutual friend, by the way) that he liked me back. I refused. I thought I was lucky she listened. It turns out, he'll go out with the first girl to have a crush on him.

He found out that a (distant) friend of ours liked him and ten minutes later asked me if he should ask her out. I stuttered a lot, but basically got out, "You only found out a couple of minutes ago, and not from a very reliable source. And you never even mentioned that you liked her! So, no. No."

The next time he saw her he went up to her and asked her out. I was ten feet away. She said yes, he hugged her, and I had to pretend I was totally okay and not freaking out for the next 40 minutes of class. (The fact that he asked her out in a classroom kind of proves that he never sees her.)

So... Help? My best friend is going out with a girl he barely likes (which is also unfair to his new girlfriend, might I add), and I'm totally crushing on him.

What is a sad, dramatic, hormonal teenage girl to do?

Don't let jealousy take over and still be his friend always be there for him to talk to when he needs it and then he might realize your better for him if not you could tell him how you feel but you need to ask yourself how much you enjoy his friendship cause if you tell him how you feel it could make it awkward if he turns you down.

What is a sad, dramatic, hormonal teenage girl to do?

Keep quiet and let this hormonal teen age guy get over himself. You will be glad you did, when he settles down and matures a bit. How old are you both?

Hey, if you didn't make your move, and they move on, that is the risk you were taking by remaining quiet. Lesson learned.
However, now you can either be a friend, or stop being the friend for a little while if it bothers you a lot. Respect his relationship, new or old, if it ends, then you can tell him your feelings, don't wait until he gets in another one.