Why do I get the feeling this gyaru chick is going to let herself get knocked up by the MC, since she believes all these childish things about relationships and probably thinks sex is only for procreation or something.
I feel like I've seen this before in the movie Anger Management with Adam Sandler except with more Yuri NTR and the NTR actually loves the MC.
Either way
Exactly people don't seem to understand the situation that he's in, of course he's going to try to screw her over at every opportunity since they are mortal enemies and he tried to flee instead of sticking around to torment her. If anything, they are both toxic and deserve each other...