Nope, you are being pushed out of the group, happens at these ages, is quite normal too, kids do not understand what to do when they feel they are going in a different direction, so they do things that are cruel, some worse the others. Those that cling to the old groups, those that do not actively search for other groups/other friends, get left behind and feel like you do, when the separation is complete you'll feel even ore isolated and alone, it will get worse. You can change the course though, not with them, give that pipe dream up, it's not going to happen. You need to join clubs, activities, things that you ma have an interest in. Sports, thereafter, academic, or simply interests. While at first it may feel awkward, if you give it a chance, you;ll meet like minded people and can form very deep relationships.