What can I do???????

I don't think that the only problem here is how you are gonna see him again. Since you can't even see your friends, it's not very easy to see him. But you can still e-mail him. They didn't forbid that too, did they? But getting their trust back it's the most difficult thing. You have to change a lot, or at least show you've changed. Start studying a lot, don't spend hours alone in your room, just go and talk with them for stupid, unimportant things, just to show them you trust them for everything. Then show your best behaviour and I think that's all you can do. I don't guarantee they're gonna believe you straightaway, but eventually you'll get their trust back. Then, if he really cares for you and he can really wait, you'll be together again, much more careful, and you'll see if this can go on....