Yes, as a writer I think that his plots are different but theres a patten between them, if you read between lines, of course. Like his trade mark, a very "life is bittersweet maybe we can make it, but at the end we dont" trademark. Its about likes, i dont care about it very much, but by now this manga give me that sensation xD
Sumin & Seju's relationship is abusive from both sides and obsessive/addicted from Seju's side. How a story about healing can end with them together? Sungji healed Sumin but Seju is still sick and rotten and there's no chance for her to heal in 2 chapters to end up with Sumin. I can only see 1 ending - Blonde - even though I'm not really a fan of Sungji. But she makes Sumin happy and she's happy with her too so I don't see why not.
I know that.... but korean stories are not that simple, "bad" endings I mean " non wanted" are very common, maybe not in Hallyu dramas or webtoons but it can happen. We humans are full of mistakes, SuMin being confused, and feeling guilty and making another mistake...that in life is so much usual, its more easy to act thinking cowardly placing fears and doubts to so many people. So as a korean story, the posibility exist, I just said that even if SuMin and SungJi end up separarted it would be better, even if the chances for SeJu are 30/40%

cmon, I think that if SuMin and SeJu end up together this would be a really waste of time reading. Why? Cause they eventually will break up. Why? Because they love cause they need instead of needing cause love. Their relationship was nice but now its so damaged and mixed with obsession, and that my friend, its a point of no return. So SuMin alone or with SungJi working things out, fine, but if not, this was just like seen another Woody Allens movie but diff shape xD