I think I'm in love with my friend's boyfriend, but he was my best friend first. And there's more... help!?

You have to realize something, you're young, this guy isn't going to be the only one in your life, the reason there are so many guys on this earth is so you can pick and choose whomever you want. Next time you see a guy you like, go after him because your "friends" will if you won't.