She sees me as much more than my friend, but even to more extreme levels than that. A little backstory on our relationship first.
When I first visited her in the orphanage, she was really quiet and never talked. Whenever I tried to approach her, she would always back away. After I kept visiting her, she realized I wouldn't give up. I started talking to her. It turned out that she was five at the moment, and I was a little older by a few years.
Every day after school, I would run half a mile there just to talk to her. We had so much fun. As the years passed though, I was in middle school, and after many years of bullying, while talking to her, I broke down. I literally destroyed everything, there were large holes in the walls, There were desks inside desks, and shattered glass.
She managed to calm me down though as I cried afterwards. She seemed to really want me as a friend. As time passed even more, she became more and more attached to me. When I would leave after talking, she would always grab my sleeve and try to pull me back for more time with her. She would sneak out at night stare at me through my window until I woke up and let her in.
I lived alone for a few years before I became an adult. Both my parents had died, and I was completely isolated. One of my friends paid for the house in the mean time. I always visited my friend, and she always kept me there so long that I was once there for literally 12 hours. When I turned 18, I immediately took her and flew to Japan.
We got settled there, but she became even more attached than before. Nowadays, she always comes with me when I go anywhere. If I do manage to leave alone my some miracle, she calls me every minute, literally. I've timed it. She is always panicked when I am not around. She always tells me she loves me.
One time, I came back from work, and when I opened the door, everything was cut open, and she was sitting on the floor, scissors on her lap. Her expression was completely devoid of any emotions. All she did was mechanically turn her head and say "Hello, how are you?" An hour after that, she was even more clingy than ever.
She also has handcuffs and rope in a locked box, which she uses.
I need to ask, what do I do? I love her to death, but the lengths she goes to in order to stay with me is hard to deal with. I am starting to think that she is just obsessed with me. I am actually scared of having to leave her due to what has happened, and what she is capable of doing when I am not around. She is always so happy when she is with me though.