My best friend is dating my ex?
So I have a really close group of friends. I'm only in high school, and I'm really iffy about relationships. Over the summer, I fell really hard for this guy who we had just started hanging out with. I found out eventually that he liked me too, and we started dating. We dated for about two months.. I ended it only because it wasn't working out. But there were feelings on both parts when the relationship was over. Afterwards we managed to stay good friends- we were actually each other's best friend of the other gender, but my feelings for him were gone. This past week, he and my best friend tell me that they like each other. Last night they hooked up and are now officially in a relationship. Ever since I found out, I've been in the worst mood. It bothers me that they're dating- it hurts, actually. Is that wrong? I can barely talk to her, and he's mad at me for being upset. I have no idea what to do! I know I'm losing him already, but I'm so lost. It's awkward and uncomfortable to see someone so close to me with my ex...