CloggedDonkey said:
Sometimes, when you try to paint people in the best light possible, this causes you to overlook some MAJOR flaws. That's what you're doing here.
1) This girl. Please understand that when it comes to girls and women, the #1 currency in which they deal is ATTENTION. For some girls, this develops into an unhealthy addiction--the sort that makes a girl want to play two guys against each other so she can feel super-wanted. This girl is addicted to attention. That means she has no real feelings for you OR this other guy. She just wants the feeling of approval that your presence AND your fighting will provide.
I'm not saying she's not nice and sweet and all that. I'm not even saying she's doing this thoughtfully or on purpose. But she's definitely doing this, and it's definitely not good for ANY of you--herself included.
2) This guy. He's just as in-the-dark as you. And you see what that can do, if he's willing to use even the merest threat of physical violence to get his way. This situations will not end well for either of you, as the easiest way to drive a wedge between two guys is one girl (especially one with these problems).
This has also revealed that your friend believes, deep down, that he can push you around. Just remember that. Your friend thinks that, when it comes down to it, he can bully you into doing what he wants.
3) You. You are letting some major insecurities make you very easy to manipulate. I don't know you, or your story, but I do know a few fundamental truths that apply regardless of your specifics.
Firstly, life goes on beyond high school. I don't know how old you are, but these sorts of things are very common in high school (and in college, for those who can't let high school go). Let that stuff slide--in six years, you'll barely REMEMBER most of these people. It's not worth changing your whole world to accommodate them.
Secondly, some people have lots of friends. Some people don't. A person's worth isn't based on how many friends they have, or how many girlfriends they've had. When you get desperate to raise your numbers, you'll just about always end up lowering your standards. It's the same thing that keeps women in abusive relationships--they settle for something, and then let that person manipulate them into think there's no one else that would take them. A lot of time, their own insecurities make that point MUCH more convincing.
It sounds to me like you are in an abusive relationship, emotionally speaking. Get out of it. Then, keep an eye on things with your friend. Don't let that become another abusive relationship.