What to do when the ugly duckling, is not so ugly anymore...!10pts. I need help!?

Well, if you think about it, these girls who "suddenly like him" don't own him, and you've known him for a while. When it comes to someone you like, go for it! It's not up to those other girls to decide whether or not you should like him. If you really like him, make your move fast, don't regret that these new girls like him, but not take your chance, because if you sit around and mope about what could happen, you can miss out on your chance to ask him out.