ML was dead set on getting back with Daphne. And which woman has the power and thick enough face to pull out MC's stunt? She'd be those kind of villainess in classic romance story and be dead for sure.
Even if she had thick face to do that, if she's a nobody or even a noble with not enough power, then the royals (ML, the crown prince) can make her dissapear easily.
Plus MC was driven insane from repeated regressions, I'm sure if we open his head then we'll know his brain is an odd shape atp

Okay but, is he stupid? Why can't he just pin other woman with the prince instead. Idk there's like other method you can use