yep, agree with you.
i don't have the patient to read this so i skipped and man.. cho ah was the epitome of someone with kindness together with stupidity, hollow promises and weak (tbh, i hate to call someone weak, i can't help it this time). i tried to sympathize him with everything happened to him. but.. bruh, you brought this yourself cho ah.. even from earlier chaps mujin gave some hint there's something wrong with him. but yeeah, suure, keep being nice and gave him hope, found out he's psycho then puff, "i don't love you no more mister" the hell..（￣へ￣）(you mention he keep sleeping and getting aroused with OTHER leads.. damn..)
i'm a sucker with all white hair MLs (though i hate other white hair with the tattoo, the one that ended brutally), maybe some people will think i'm sick for siding with sura.. but damn, cho ah frustrates me. i wish he was stronger, someone who could actually manage, treat mujin/sura's psychopathy to be less dangerous, hold mujin/sura's leash (￣∇￣") and defense himself every time some sick bastard attempt sekuhara at him. (i'm not an expert, and maybe this is an absurd wish in reality, but that's a fiction)
Ah i dont know I kinda hate the bottom, he's so fickle and keep sleeping and getting aroused with other leads. And all those promises what were they for if in the end his final decision was to never try to understand biryu and hurt him so much. No matter how wrong and psychotic, I still side with sura