Friends will come and go.. If you didn't seem him over the summer, you were probably just aquantances that hung out because of convenience. After high school it will be far less important. You will have far better friends that are from many different places.
Kind of one of those things I wish I had understood in high school. Just make good friends, who cares what group they are in, if they go to a different school... whatever. You can always date hot girls from other districts if your own doesn't think you are as worthy. Blow it off. Forget about it. Just focus on education/having fun with whoever is the most fun to be around.