>>282247724
You're just writing your own lame fanfic in your head.
Him being an unhinged maniac is absolutely the reason why he has lasted this long, and why he has managed to take down so many Devils.
P1 finale comes down to him wanting to commit murder-suicide with Makima, and then electing to cannibalize her instead.
"Fujimoto: If you ask me, don't they basically all have something wrong with them? That's why I prefer the superheroes from DC Comics over Marvel Comics, there's a little more realism to them that I like. Many of them are bearing some kind of sadness and are even depicted as criminals. It's abnormal to have enough power to save someone in the first place, so they can't live ordinary lives."