I wouldn’t place as much importance on the fact that it’s “spin off” as ur doing! For one, there’s just no sense of discontinuity between the 2 parts… it’s in the main part that she says that she will wait for them right ? So in that sense, the “spin offs” just feel like a leap forward in time, not a parallel universe or whatever. They’re completely compatible w each other & it’s not like we get the sense that they r now acting out of character. I think the main thing tho is that the manhwa is based off of a light novel, & in the novel they also end up together. So it’s just straight up part of the original story. The only thing ur really going off of to say that these post-main-story chapters r not canon is what they’re being called, right ?

This hurts my soul.. I’m so upset, I haven’t cried in a while but this shi made me cryyy. They were both hurt so badly but he deserves a million hugs :(
I thought I wouldn’t like him in a million years seeing how he was at the beginning of the story, I thought whatever his story might be it would never make me forgive him but yh no .. I didn’t expect all that damn T-T
I know the ending was the only logical thing but I still hoped for just a bit that they ended up together