WTF is up with this Vampire and were subculture... the ones who really think they are and think that I am too?

I'm not talking about the people fond of the fiction or dressing like them. These people, usually older teenagers and young adults, actually believe they are real. My last boyfriend dropped a bomb on me 4 months into it. I ******* thought he was the most amazing man i ever met untill He said he was a lichin and was pissed because he couldn't shape shift like the others... and he went on about a psychic vampire that was feeding on his energy at work.. and how he went through the "change" at this age and about his "other side"... he didn't believe me when i told him he was bipolar, not a werewolf. This guy would eat raw meat and go nuts during fullmoon. He would take me to woodsy areas and point out footprints that turned into bigdog looking prints and claim it was a lichin who shape shifted there recently. and he thought I was one too because I had this "magnetism" about me. There was this group of kids at jobcorp as well who all thought they were vampires and were drawn to me in particular because they thought I was one as well. They would approach me and say things like, "You're one of us aren't you?" "A blood drinker" OMFG... what is this psycosis?