I want him to belong to me

He still occupies my mind, but instead of bliss, it's pain. I want to keep him all to myself. I still get jealous when he talks to people without me, even though we aren't together. I want to tie him up and make him mine forever but I know I can't, even though I know where he lives. I know that if I ever tried anything, he would hate me. He wouldn't even be my friend anymore. I just want him to need me again.