I DO understand what you're saying about your best friend. I think it's one of the hardest experiences of life especially at a young age. There's something about deep friendship that seems to outlast romantic relationships at certain times in our lives. What I've found really helpful is at some point to talk with your best friend in a more quiet and relaxed situation. Express your feelings and see what happens. I know it's something that may seem extremely difficult, but it's the best way to know if you're both on the same page. Many times people hurt each other without even knowing they're doing it. All the best.
We've talked about this many times in the past week, he still assures me that something like this couldn't get rid of him, but it still feels weird for me. I was worried he's be the one acting like this but instead its me.. =/