Are you dumb or just twisting the comments from readers on purpose? If you read the comments they were not at all about people not wanting Seju to find new love or sticking with Sumin forever. They were about the shitty writing in comparison to how it used to be, and Won being a stereotypical "princely" character.
Now say all that without crying lol
Damn looks like someone hurt your feelings pretty bad. It’s a manhwa at the end of the day and if you have such high standards for a side story maybe write your own to satisfy your needs buddy. No need to shit on all the fun here with all your negativity. Peace
The evident lack of brain cells from this reply is astounding

To all of the haters who were sending in hate comments about Won last week ...literally how is there anything to criticize about Won especially after reading this chapter This is what Seju needs and deserves after all that she’s been through all the years (and there’s no point in denying that most of the pain she was dealt was at the hands of Sumin and that too, purposely. So, on that front i really don’t see what the remaining seju/sumin shippers are on about..why would you want seju to be with someone who caused her so much pain like that? And although these two have gotten past their toxicity at this point, it’s a relationship that just cannot be picked up again because sumin is happy with sungji, and now Seju is getting to that point with Won. Reading all those comments last week all i was wondering was: why is there such a huge fuss when seju finally chooses to love someone else?)
And on top of that, to be nitpicking little things about Won (being manly, unrealistic, etc) I hope this chapter made it clear to these people why Won is perfect for Seju’s future. Anyways, just wanted to say my piece about this argument from last week