Am I obsessed or am I in love?

I've known this guy for three years and he's been a really good friend. It just so happened that he became my friend in the times I need friends the most. He liked me, and I liked him. Unfortunately it didn't turn out to be a relationship. He still dated girls and such. We still talked, and I always got vibes that he liked me too. Well, this summer he is moving and I am worried for his safety and about him. I've been acting crazy and buying him a sweatshirt and also messaging him constantly. He's told me to stop, and he's also blocked me. I got onto another account to somewhat apologize. I was obsessed with him for like two weeks. Then today I emailed him again after a two day hiatus, and told him that I miss him as a friend. And i don't wnat to end just because of some "myspace drama". I miss him sooo much as a friend. I would much rather have him as a friend than as a boyfriend now. :(( I want him to be happy too. am I obsessed?