In all fairness, the MC is literally going through, what he believes, Deja Vu. He has an inkling of what's going, but does not really understand that he living the same day until the end. Everyone doesn't realize it except for him, so they can't change the way how they act. He's confused because of that and I don't blame him. This isn't a normal occurrence for anyone, so excuse him for being this way. I know I would be doing the same thing as him. I've had dreams like these and when they happen in real life, you literally do as the dream because that is just how it plays out. There is a reason why you dream certain things. If this continues for Chapter 4, then maybe that'll be an issue. But, for now, I believe it suffices with the plot.
i see your point on how that could be the case, but from a practical point of view there was a reason why the author chose to do minimal work and put minimal effort into this chapter. it’s much easier to use already drawn scenes and add a few new dialogues than it is to draw entirely new scenes with different outcomes. personally, this left a first bad impression on me, but it could very well improve in future chapters :)

no offense, but i think the author got lazy with chapter 3. it’s basically just recycled scenes :/ you’re telling me, after waking up to the same day you have an extremely vivid memory of, you would do the EXACT same things? say the exact same things? no, it should be different. even small actions matter with a plot like this, otherwise it will be extremely boring. not having high hopes for this story tbh