Does this person have some kind of mental issue? I am seriosuly asking this, not mocking him. Because by reading through this post it stands out to me that he doesn't mention or highlights empathy. And that's where his problem stems from
Not every closed-in and awkward person is lacking empathy.
Though, research shows that autistic people among themselves do have empathy. So it’s not as if they don’t but it’s because they tend to communicate differently. It’s called the double empathy problem, if I recall correctly.