well, it's sad that she managed to heal herself (and yes, we're all horrible people to think that even tho it would make the story better with the depth that comes with it), but I'm pissed about how she did it. If this were a OG Heroine is the Saintness so she can heal her it'd be very acceptable, but gene magic is total bullshit.
Stiiiiiiiiiiiiiiiiiiiill, having the villainess to be the one breaking the engagement is always such a frikking treat and this one was amazing, totally worth it