I think I really........?

I think I really love this guy. He used to like me, I am not so sure he does anymore, but I think I love him. I can't stop thinking about him, he is on my mind 24/7. I keep picturing us walking up the beach holding hands talking and our future lives together. I have caught myself laughing while thinking of him and so have my parents (luckily they didn't know what I was thinking about) while I didn't even realize it. I daydream all of the time and I don't want to go to sleep at night. I just want to think about him and talk to him. Unfortunately, I think he is over me. He liked me from February 2010 - February 2011 and I haven't seen him much since. We live 45 minutes away from each other. What do you think? Do you think I am in love with him. I am only 15 years old and he is 14, but I guess things like this can happen to people. I am also very mature for my age, but I look way younger.