Wait, what :))? I didn't read all this manga so now I'm not talking about Dohyun, but Stockholm syndrome is NOT falling in love, it doesn't have any relevance with love. It's a sort of attachment, but just as a defensive mechanism, because someone is so scared and emotionally stressed that begins to do anything (and think in strange ways) to feel better in this situation, it's a survival technique.
Also, if you're in a relationship and the partner become abusive and you don't leave, that isn't stockholm syndrome, because you were already in a relationship with them, already had feelings and you stay because of your past. Stockholm syndrome can occur in cases of abduction, where you didn't know the captor till then.
thanks for clarifying this. alot of people dont know what stockholm syndrome is. it's NOT love and its not the same as what goes on in the mind of someone trapped in an abusive relationship. Dohyun doesnt have SS for two main reasons. he alrdy knew sungho and had a strong attachment to him before life drew them apart. and 2. he never once tries to suppress himself for sungho, and would on purpose lash out at him or attack him. he did try to get away and when he stopped doing so it was because he finally started to wake up to his own repressed feelings and memories. and then ofc at the end he's no longer under sungho's confinement. yet still goes out of his way to protect sungho from legal reprecussions and fatal injury. (and ofc he chases him to make sungho stay). none of this is the behavior of SS. he didnt start to sympathize with his captor because of his trauma from captivity. i wish people would recognize that even if this relationship is fucked up and not smth to idealize for real life (obviously) it doesnt mean it needs to be pathologized or turned into a "textbook" case of a known defense mechanism against trauma. as someone who haas known trauma i can tell u the brain does some rly odd things to try and justify it or make a person able to handle it rather than shut down. SS is just one of those. dohyun didnt need to make excuses for sungho once he was free of him. but also he didnt seem to react to trauma in a way that most real life people would cuz dohyun is a fuckin freak lol and i guess that's why people try to make him into more of a victim than he ever actually was.

Ok for all the ppl who still says that dohyun has stockholm syndrome and doesn't really knows what stockholm syndrome means in the first place.
Stockholm syndrome is falling in love with someone while being scared with them (being held captive by them.
It's the same situation as: you're in a relationship with someone for years but your partner starts to abuse you. You can't leave them because you love them and you still hope that they will change, so you will do things that won't make them get angry and hurt you (you're scared).
So basically stock-holm syndrome is still love but a toxic one. You can't say "it's just your brain" because love comes from the brain too.
Stock-holm syndrome is not just falling in love while being held captive (so Nakyum from POTN doesn't have stock-holm syndrome too but Bum from KS has it[yet still bum loves sangwoo in a toxic way])
So none of these define Sungho ang Dohyun's relationship, therefore Dohyun doesn't/didn't have stock-holm syndrome.