Take the time to help! plz I no its lots but im be picking best answer!?

okay... well this summer has totally been a turning point for me. I lost the best friend I've ever had. You don't even understand how close we were. I guess oposites really do not attract because we totally grew apart. We used to always breathe eachothers air and never leave eachothers sides. I finally let myself look at her mypace, and as I suspected no hint at all that we ever new eachother. Made me want to cry. Now my two best friends are... really good friends but tu just dnt get the same feeling u no? I dont mean to sound rude or vain but last year I was really popular. (srry if that does sound vain witch im sure it does but thats the truth) Ever guy new me and all the girls would try to talk to me even tho we like never talked before. I guess it was just my best friend that was doing that because now... I mean I still am popular just not as much as last year. It seems like I've lost lots of friends.... and I don't really no how to handle it. Have you ever been in a cl, and all the "popular" ppl are sitting at one big table and your sitting with ppl that are no where nere ur social cl, and u just NO that if it had been last year u would be with those popular ppl?? Im srry its so long I just dont no what to tink about this.... you may think im being stupid but going from everyone wanting u to say hi to them in the halls, ppl coming to ur locker or just stoping in the cl u are in to say hi, to only like 2 ppl doing that.... its just a change ig. If u've experienced anything like this plz tell me ur story and tell me what u did and how it turned out