Maybe Khaol didn't come for her ceremony, so the family offered the other sister and he accepted. This could lead to her feeling that she was defective and became obsessive about Forest being Khaol's bride.
It was unexpected to see the grandma in such childlike form, and the different personality contrast. Take it as author's creativity and comedic humour in their reunion (⌒▽⌒)
I’ve pretty much come to terms with it all, and reminded myself why I stuck with the title in the first place: Heil is hot, he deserves some loving, and it looks like River is gonna wake up and smell the coffee.
Please excuse my frankness, but I am not sure how to put this. On one hand, I am very happy that the series has switched ships, vigorously I might add. Heil x river needs to sail.
On the other hand... something about the writing of this entire grandma arc bothers me. The grandma acts nothing like an elderly woman would; she prances around like a child, despite knowing that inside, she truly is a grandmother. Second thing is, I felt the author just needed a bit more restraint and creativity in getting her points across. Yes, we know that Khaol is a bastard and grandma is sorry she put the kids through that. I just think it could’ve been written in a better way; it’s a classic step of ‘show, not tell’ I couldn’t help but feel that, in maybe showing less, she could’ve delivered all these points more powerfully and poetically. Rather than saying out loud “Khaol is a bastard” or “Grandma is sorry I put you guys through it, go get your revenge or whatever” It’s just so abrupt, so /flat/ that I don’t feel anything at all from these scenes. Again, do show, not tell. A scene where Grandma realizes the heartbreak her grandchild experienced, leading to this scene, might’ve driven the point home and made it more emotional.
Edit: And how could I forget the plot hole. Grandma wasn’t able to become a bride because she couldn’t see, thus her sister took her place. Er, what happened to that reasoning?
But I’ll be honest here: I am here for Heil x River. Bad writing or plot holes be damned, I just want to see them kiss. There I admit it. Once they do, I’ll shamelessly make a WALLPAPER out of it.