How to describe your loneliness in one sentence?

My loneliness comes from my deepest feelings. Many people are lonely because they are alone, have no friends to talk to, have nothing to do and can't be with the people they like. My loneliness comes from a place as big as the world and the city, but there is no place for me alone. I think the world is unfair to me. Why are everyone else in pairs? I am always alone and have nowhere to go. I can only nest in my own small room, hide in my own bed, lie alone, empty myself and think about the past.

My loneliness comes from memories. I am a person who especially misses the past. I miss the past, miss the past, miss the past, whether good or bad. I think the past is always good. I am a person who is unwilling to accept new things, because I feel new, which is beyond my control. I don't know if it's good or bad for me, so I don't want to accept it.

My loneliness comes from my friends. Obviously, with so many friends, I have no one to talk to, no one to understand me, no one to help me, and no one to help me out of this loneliness. None of them helped me. They will only use me and abandon me after I am useless to them. People will never get enough to eat.

My loneliness comes from myself. What I'm good at is self-isolation. I don't want to accept anyone, and I don't want to accept anyone. I don't want to like anyone and I don't want anyone to like me.