How can someone react to this situation?

a famous musician has been semi stalking me for 2 months now. It's a weird story but we haven't met. He saw me at their concert- I was near the front and did things I won't get into to get me to msg him on facebook or somewhere later. At first it seemed funny and cool, and he was pretty funny, but then it got kind of bad. He's a narcissist, some kind of a disturbed sociopath and just plays all these crazy games. He stalks me in diff ways- I mean long distance, but he's hacked my computer I'm sure, and just wants to control my life in different ways. He's also done lots of witchcraft and crap on me. He's heavily into that. At first yes I thought he's famous, this is so cool or exciting- then I didn't really see him as famous but just someone I was close with. But now he took it to other levels. He really wanted me to go to this 'thing' out of state, an event, but he played a lot of games regarding it and and I was really scared adn in the end I didn't go. He won't let it go to this day- he was upset, hurt, devastated. Every single day now is about this event and how I was the only person he wanted to be there, and I wasn't there and it was the worst day for him. Even questions he answered he does so with things we talk about etc. He does weird stuff where he'll do interviews, and answer things the way I talk, or based on something between us. His latest interview he gave his 'favorite song' and it was the song where at their show I got knocked out by some guy, and it was a big deal. It's funny and cool, but now it's like he's either just obsessed or crazy. That was the one way he wanted us to meet, and I didn't go, so now it's like he's just crazy and won't think of another way. He's also trying to make me feel guilty about not going every single day and making me pay for it. Again he's a narcissist playing games so it's like a battle of hell. It's what he wants, when he wants, and he calls me his puppet and says that he owns me. We talk online and we've talked on the phone a few times. If I'm busy sometimes he'll call my phone like 20 times just to get me to talk to him its gotten ridiculous. He just wants my attention any chance he can get, but when he's busy, he just says he has to go and leaves and ignores me. He's a worse narcissist than most b/c he is a celebrity so he feels really entitled since he's giving me all this attention. I started asking him to leave me alone- b/c I was sick of this crap and it was too much btu he won't stop. He's also a high end witch so he does some crazy things to me I can't get into. He keeps saying he won't let go and that im his...now they're going to be touring for 3 months out of the country and I don't want to deal with this sh*t. Ive asked him to meet and he's just playing more games now. He'll talk about meeting, and lead me on like crazy, but then give some stupid excuse last minute. He does this all the time too. He's just all about games..He gave me 'one' stupid chance and it was a nightmare, and everyday he makes me feel so guilty for not going. He plays games I can't even get into and it's crazy and he's abusive too and controlling...he also says he loves and needs me, but he's never met me. He's also really emotional about this- which doesn't seem normal. He acts like he really likes me so much and it doesn't make sense. He's almost ruining my life and he just doesn't care. Is this really obsessive behavior and is it disturbing... I also notice 2 comments one blocked, so there is some other pathetic loser stalking my postings that I write abotu this or somethign else- some creep on reddit...

/r/AskReddit Thread