What's wrong with me?

I think you need to get out. Go find some girlfriends your own age. Have fun with life! Dont worry friends come and go all the time. Just get new ones. Im not telling you to replace them, but just get new ones, go somewheres you enjoy, scrapbooking cl, sewing cl, swimming group. Meet people like that you have in common. Try to reunite with these people. Add "A" on myspace, let her know how you are.