Help me! I told my other best guy friend that I was bisexual and he betrayed me!

Whoa, whoa, whoa. Relax.
What Sean did wasn't out of the ordinary. At your age, gossiping is all people are concerned about. "Who?! Did what?!"
When someone your age feels like they have some important information (like your sexuality) and you tell them not to tell other people, the hardest thing to do is not tell anybody. And so he did. Totally normal. I'm sure everyone has spoiled their fair share of secrets.

What matters is how you are now. You've said that life is continuing as normal. Nobody found out, nothing is going horribly wrong. No terrible consequences stemmed from what Sean did.
I think you should forgive him.

Forgive him because, in the whole scheme of things, what happened is not a big deal. It feels like it's a big deal because you constantly think about it, but it's not really affecting how you're living your life now. If you stop thinking about it, you'll realize that it's not such a big deal.

Don't shun him from your life. Everybody needs friends. But maybe think twice before telling him another secret?

 

Oh dear -.-'

Well I understand your feeling of betrayal. When I was 14 my brother decided to play 'Let's go through my brother's computer and invade his privacy' which is how he found out I wasn't exactly straight -.-'

Anyways, yeah it sucks when you want to trust someone so you offer them a piece of yourself and they use that trust as a weapon against you. It does suck, and it hurts a lot. For me it made me feel unable to trust anyone, and still in so many ways I have trouble trusting people. I just can't bring myself to that point anymore *sighs*

As for your behavior...shame on you *gives you a motherly scolding* Since when is a wrong made right with another wrong? Never, that's when. I understand that you feel hurt and betrayed, but you can't let yourself sink to the level of people like that. It's bad to treat anyone like that. Especially because you said this boy doesn't have a lot of friends and that you bully him. That's a very negative way to handle things, and you may very well be pushing him into taking the type of action that will leave you feeling guilt for the rest of your life. You need to stop that behavior, bullying doesn't solve problems it creates them.

Should you forgive him? It depends honestly. First off you need to talk to him. I know it sounds crazy, but you need to get his attention and get him to talk to you. Tell him that you felt betrayed about what he did and more than that tell him that you're sorry about the way you reacted to him after. Now, if he offers you an apology back then maybe you can even rebuild that lost friendship, but if he doesn't apologize move on. Stop bullying him either way, and show him that you can be the bigger person ^^

 

It's alright. You don't need to apologize to me about it. I said I understood how you felt, and I get why you'd react that way. It's okay to feel hurt, and it's okay to feel a need to get even with someone. You just have to remember there are more important things in life, and better ways to handle a problem.

I have faith in you, you'll know what the right thing to do is ^^

 

Please don't bang your head. If you absolutely need to hurt yourself, try to redirect it to a different self-harm rather than head-banging.

It doesn't seem like it, but banging your head is actually quite dangerous. You could give yourself a concussion if you hit too hard, and even a mild concussion can cause permanent damage. Multiple concussions add up over time, causing post-traumatic encephalopathy (also known as being 'punch drunk') in some people. Also, banging your head on a regular basis for a long time can cause a detached retina, which can make you blind.