What are the titles? I can't read Japanese and i feel MTL won't do goodFun fact, the titles in the r-18 version were also from her perspective.
THE WHAT VERSION!Fun fact, the titles in the r-18 version were also from her perspective.
Honestly, I still think that the MC slapped the FMC, not that she did it to herself. To me, it reeks of the "You didn't save my life, you ruined my death!" mentality that the death seeker had in the early part of The Incredibles, and him physically lashing out at her was a knee-jerk reaction to her both foiling his revenge (by heartbreak) after cozying up to her, as well as his escape from all the bullying he's endured both currently and in the past.
It's like he's thinking, "I'm at the end of my rope, but if I can set up and mentally destroy my original bully while taking my own life to escape this, then it'll all be worth it."
It also helps explain the change in color in the FMC's dialog boxes. Hers starts out dark because of her own bullying situation, but gradually lightens as she's pulled into the MC's "revenge by heartbreak" plan. Then she's in despair again because the MC is now being bullied as well, but now that she's attached, she feels pain from it. She herself hits rock bottom when the MC tries to execute his finale, but she's actually able to save him from it, and him lashing back with the retort of "Can a bully like you make me happy?" and the slap is what gives her the conviction to change her thought process from "I can make you happy" to "I will make you happy (and save your life in the process)."
Yes, you could make the argument that she'd be proving to him how serious she is if she slapped herself, but I think that's conveyed well enough with him slapping her, since that also gives the impression that she'll take any and all abuse from him (not just her own bullies) to prove that she can make him happy. Remember, all of the MC's revenge actions against her so far were psychological and designed to lower her defenses, not a direct attack to cause pain. (Presumably. We don't really know if it's an independent set of bullies who were harassing the FMC at the start, if they were set up by the MC, or if the MC was discretely doing the bullying himself as part of his elaborate revenge plot. We really just have these single panel interactions with only the FMC visible, and no scenes of the actual bullying or background activity. Hopefully it becomes more blatant in the future.)
In short, I think the current plot progression is "I can ruin her" becoming "I can fix him" from the perspective of the ruiner rather than the fixer.
Whether the slap happens before or after his retort, I still believe it makes more narrative sense for him to be slapping her. She's grabbed onto him and is frantically pleading for him not to throw his life away while also claiming she can make him happy. Him slapping her absolutely accomplishes something in snapping her out of her frantic pleading and keeps with the antagonistic trend in his thoughts and actions. He's plotting his revenge, after all.
I did read both translations, and I still can't see her releasing her hold on the person she's trying to save from killing himself (ref. "grabs tightly") so she can slap herself as a show of determination. To me, it makes more sense that he's slapping her to both get her to release him and to coincide with his actual retort. He's not feebly asking if she thinks she can honestly bring him happiness, he's insinuating that it's ridiculous for her to think she, a (former) bully, can make anyone happy. It's not cautious optimism in his retort, it's derision. And that's a perfect reason in his mind to slap her, because he thinks she's talking nonsense.
Now, it may become clearer as the story develops what exactly happened, but right now I'm just not convinced she slapped herself here, versus him slapping her. It may just be that we'll have to agree to disagree until it's shown in full. (I'm willing to admit defeat with more compelling evidence.) When you have a single image for each scene with no sense of action or motion, it can be harder to determine what actually happened.
Japanese is already a more ambiguous language than English, generally speaking. Removing or limiting situational context just makes it harder.