Not my man

to make a long story short, i've been dealing with this guy since 2003. he was my boyfriend for the summer months, then broke up with me. after we broke up, we never really let go. i've have been dealling with hume from then on. he always makes it clear that he is not my boyfriend, but he sure feelings like it. we have sex, we go out, he takes me around his family, he get upset if i don't answer my phone, he doesn't want me to be with anybody else, but he's not with me. the hard part is no matter how hard i try, i just can't seem to leave him alone. he is and has been for the past eight years the only guy in my life. and now my only friend. i just need some encouragement.