I Feel So Alone Inside And Out And Yet I Still Isolate Myself

I met someone, and it seemed to be going ok, but now I don't think I want to be with that person, and I can't even say why... I just don't think they're as real as they say they are... don't trust him. And I'm just here, bored, with family, so sad. Why is it nobody is around or available when I want to talk?