Someone commented a really on point analysis on the first chapter.
Our MC is engaging in toxic codependency, making her rely on him as a stable force of emotional attention and food. MC doesn't shame her or scold her in any way that doesn't benefit himself (e.g telling her that she's not eating well enough to get her to eat his food). Allowing her to ruin her life with truancy, debt and (prediction) abusive relationships. MC doesn't seem to care about the social clout he gets by "dating" a terrible partner, but he isn't afraid to use that clout for his purposes (CH.5 where he sets up a bomb at femc's lover workplace).
Eventually when everything in her life goes to shit, MC will be there holding her life in his hands completely.
Psychopathy seems like a likely diagnosis for MC, he doesn't seems to care much about Femc's wellbeing aside from what he can get out of her. If Femc did not exist, he would do the same with other women in her life (foreshadowing from the CH.3 school meal scene?).
I'm excited to see where this goes, can't wait to see how badly the "cuck" comments from the first chapter age.