Hmmm idk i dont see his thought process as illogical. All his life hes been abandoned by others and he believes its his own fault that he was the issue and thats why they left. So to him he rather be the one doing the leaving than have to deal with someone turning their back on him again. Its much easier to walk away before you get rejected. Itll hurt less. But i can see what you mean..hes scared of the relationship ending yet he wants to be the one to end it.
Ur last sentence nailed it! Thats the illogical part, esp coz he is aware of Han's intentions. And i get that he is afraid. Its just the decisiveness he had with ending it that frustrates me and almost desperate for Han to do something （/TДT)/ and why i hate that an ominous third party is about to make it worse
The mental leaps in this chapter is both familiar and astoundingly illogical. Like personally, i know how contradicting I can be and that amplifies my self hatred but as a hypocrite, seeing a mirror with Shinwoo reflecting that leap of judgment has me shaking my phone hoping it shakes Shinwoo's resolve as much as I want Han to continue making Shinwoo feel loved and wanted. Coz holy fck, a third party will be a death me. WE DONT WANT THIRD PARTIES, I WANT HAN AND SHINWOO SEEING EYE TO EYEEEEEEE