@Zephyr247
Because all of his actions until several weeks ago was determined by what a teenager wrote as a escapist fantasy. You can see that the MC, in creating characters and scenarios, completely neglected any sort of cause-and-effect of character's actions or experiences, so things are slowly changing now that reality has taken hold.
While normally I would not consider this a valid excuse, I think it works here because the story puts such importance on the discrepancy between what MC made characters do/think and what their actual personalities would have been if they were real people.
It's like when the MC, despite having created Charlotte, doesn't realize that being so fortunate from birth would make her conceited and aloof, and still thinks she is just a loveable and soft character. (kind of like the original FL in Miss-Not-so-Sidekick)
The fact that this is a bizarre situation stems from the fact that all of them were basically puppets for a inexperienced puppeteer who was more focused on self-insert escapism than storytelling.
In other words, what the characters do from now on, where they aren't subject to the whims of a bad writer, is who they actually are.