1. Be completely skeptical of the author's claims and demand proof.
2. Give the author the benefit of the doubt.
I submit that when we ordinarily read an article, we do the second. We can't know what the other person did that was creepy or intense, but we have (presumably) all been in similar situations. The person snaps, or doesn't respond, or yells, or takes credit or any number of odious habits.
For whatever reason, some people are inclined to not give this author the benefit of the doubt and, without being there, want to give this other person the benefit of the doubt.
To them I would say this: imagine that you have an idea and recruit a technical person to help you with it. After a weekend, you tell them its not going to work for whatever reason.
Maybe you just don't like the way they smell, or they go off on goofy tangents, or you don't like their puns, or they don't laugh at your jokes. I don't care. Its just one weekend and you don't want to work with them.
You have a right to ask them not to work with you and move on. You didn't say this was forever. If the person refused to move one, what would you do?