I mean, he IS dumb because he ain't communicating properly with Maetel (they both are dumb and dumber) but what he did by provoking Wayton is a common (yet desperate) tactic to buy some time.
In that situation, Louis has nothing else to lose. He doesn't know if help would come, so it's either die without trying something or die after trying something. If he keeps his mouth shut, Wayton is going to kill him anyway but if he provoked the guy with such spicy topic, it would give a few moments to spare while Wayton threw tantrum and demanded for explanation. Judging how Wayton reacted, Louis can still buy more time if he pushed more of the psycho's buttons.
He would die if he keeps his mouth shut, and he would die if he couldn't wriggle his way out or help didn't arrive even with that few extra moments of delay, so Louis actually has some form of advantage by provoking Wayton. He knew that he might not made it alive after all. It's either die now or die later for him so I think even if he knew the chance of escape was miniscule, he wanted to at least fight to save his life, and spiting Wayton before he had to inevitably die.
So, between having to die like a coward or die in sass and spite, Louis chose the second one.
It's not his fault. This issue has been hinted from the early chapters that you can pick up something was wrong with his mental state without reading the spoilers. And you can see now that Miriam is far older than him (from her body frame) and that he was not only a minor, but also bedridden with fever when the rape happened. This has gone one depth lower in the scale of fucked up crime than a rape. It is a CHILD rape.
Where are you people who has been bashing on the ML before? Come on, don't be shy. We all know how y'all loves to defend women without even bothering to step back and pick up all the red flags he has been broadcasting.









KDJ and YJH casually stealing my attention from the story at the credit