>>283430223
>>283435512
Character limit so I have to continue here:

>>Reze risked her life to come back and flee with Denji
Yeah, after telling him she is a trained killer able to feign any emotional reaction at will, that she did feign all those reactions on purpose, biting his tongue off on his first "real" kiss, and telling him she was there to straight up murder him by stealing his heart (Fujimoto couldn't be more blatant).
Reze was written as the archetypical damaged BPD woman, which is also why she's Bomb Woman (it's a pun on Love Bombing, which is a common BPD behaviour). She saw Denji as a crutch to give her temporary relief from her pain.
She doesn't really care about Denji because she was ready to kill him at the slightest hint of rejection. News flash, IRL the women that do this aren't cute yanderes, they cheat on you and threaten to kill themselves or stab you while you're sleeping

>>Power sacrificed herself for him
That's platonic love. They are not interested in each other romantically, they are great friends that care about each other. By Denji's own admission the sexual component is completely missing. But it's telling that the only good/healthy relationship with a woman Denji had, the one with Power, was with the two of them hating each other, and with Power being especially annoying to him, and even with some blatant ill intentions for the reader, same with Asa.
There's a reason frenemies romance is such a common trope in fiction, it happens in real life too.
Hell, even my first interactions and messages with my girlfriend was throwing sexist insults at each other, her telling me that she wanted to beat me up and me telling her that if she tried anything she would never see the light of day again.
We've been together happily for three years now.
I'd go as far to say that usually the best relationships start that way, because it means the two managed to get each other beyond surface level attraction signals