Welp, the crazy part wasn't wrong, I mean it's also mentioned/proved multiple times in game, the LI was def the type of more extreme, picky yandere (amplified on that 'yan' part that the dere blurred into kireru/yangire) which instilled the tension of stepping on landmines you have to proceed with caution for having a forced talk with the dangerous kind of mentally unsound person.
So if anyone's looking for a sweeter yan(dere) you could check out another game by the same developer 'My Valentine'!! Or play that one after this, that's what I did to refresh lol.
This Alex guy said he didn't bite, he WOULD do much worse, won't give you any heads-up (or painkillers, help I would've died or passed out honestly) for your harmful punishment, and even the kidnapping will be the least concern of yours. Personally, he wasn't the type of yandere I prefer, but I did enjoy this dark-horror terrible mood the situation set up plus that 1st end about ring finger plastered the bloody icing on the cake. Despite the true/happy end, I found it more satisfying on the third end where you can play along and left unscathed, it was the best win-win you could get out of it all, but you know.
On that note, I think the term decapitation here for the TWs could be more suited as body parts mutilation (inflicted on player), added with those stalking implications and—[[SPOILER]]
if the decapitation refers to the head stab, mentioned as just simply stabbing/head injury whatever would be enough since decapitation is like beheading and that would mean someone's head will be (literally) off separated, as long as the warning turns more specific still general-ish, enough to be prepared for what's coming, and probably as important for other to know if the protagonist is male/female.
also some typos just in case to let you know on 'accidentally' (accidentally kidnapped, lol.. very 'whoopsie' energy of Alex)