That is why one of the most interesting things about the series is to pay close attention to how exactly a person arrives at their conclusions: what they notice, what they ignore, which details they remember, and at what point they stop asking questions.
And, most importantly, at what point does their own assumption become a fact in their mind?
Why does this happen? Because this kind of pattern is by no means unusual. In fact, I think it occurs in real life far more often than we tend to realize. A person may decide at some point that they know what happened, who is to blame, who betrayed them, who deliberately hurt them, who is manipulating them, or who does not respect them. After that, they no longer necessarily feel the need to verify their version of events. Gradually, it becomes part of their worldview.
And then something rather fascinating happens: the person begins to perceive everything that follows through a framework they have already constructed. Some facts are noticed almost immediately, while others somehow cease to matter. Uncomfortable circumstances are given an explanation: “Well, that’s because…” And coincidences, on the other hand, start to look like evidence.
But in reality, this may not be confirmation of the original hypothesis at all. It may simply be the result of already looking at what is happening through that very hypothesis.
And this is where an almost self-perpetuating cycle emerges: I decide that you have something against me, so I start behaving cautiously around you. You notice my guardedness and respond more coldly than you normally would. I interpret your coldness as confirmation of my original assumption, and now I am even more convinced that I was right.
And, of course, both people can genuinely believe that the other one “started it.”