You really need to actually read it. This person was extremely narcissistic, but also hugely delusional. His idea that these women hated him was entirely in his mind. His deranged ideas did not reflect reality. He even projects his delusional beliefs onto his childhood, but a rational person can see right though it. And it's obvious his parents were treating him in a certain way that he can't see through, because of his problems.
I read every word of it.
If you have no friends, you are correctly perceiving that people don’t like you.
People who grew up with him have been quoted at length in news stories. They didn’t like him. Surly and weird are the two most frequent descriptions.
Like most adolescents, he may have been mistaken why he made people so uncomfortable, but that’s not mental illness or delusion.