It's kind of obvious he has BPD, because he has unstable emotions and he's afraid of being abandoned. That's the reason he suddenly kept Bum as his mom.
You have to remember Bum's stalking is what got him into this mess. Both of them have their problems but Yoonbum is the one with borderline personality disorder. Check out what the symptoms are http://psychcentral.com/disorders/borderline-personality-disorder-symptoms/
For someone who isn't familiar with it, I guess I was thinking more about split personality disorders. Also I know it must have been obvious to some, while I'm slow on the uptake, buuuttt I wasn't sure whether to just deem this as BPD or this was just him as a psychotic sociopath.
Oh hell yeah. I'm not putting Yoon Bum completely out of fault in the relationship. I just think it's kinda ridiculous the amount of people romanticizing their relationship, especially Sangwoo. Like he's hot, but he's a psychotic sociopath. And thanks for clearing that up! I was thinking more along the line of split personality disorder which can happen? Maybe I never know. It makes more sense for Yoonbum to have BPD.
Yeah, that's a different disorder. I don't think he had that though, because it usually does in very different ways. I have no idea whether to trust the people claiming to have it on YouTube though.
Oh and psychopathy and sociopathy usually has a symptom that shows lack of emotions and sympathy, whereas he has almost too much of both
Hmm I also thought someone being psychotic was them experiencing a disconnect with reality, often times crazed, and sociopath as someone with disregard to people and also having a lack of remorse or conscience. And to me that seems like Sangwoo
Claiming like it's canon? Or just to have fun theorizing. I mean for sure it doesn't show a completely distinct personality, but who knows whether he does have a slight split. I'm waiting to see more but it's fun to speculate :)
Edit: Thanks for some people and google clearing up what Borderline Personality Disorder is. I see that Yoom Bum has BPD. I probably got that mixed up with Split Personality Disorder. Which could possiby add to Sangwoo's character, tho not canon. I just think it's fun to make a case and adding on to the psychotic sociopath :) This is long and I thank those who read this far in . Spoiler for those who hasn't read this yet...
Few things to notice:
1. Yoon Bum's Home Invasion. After he was caught by Sangwoo, he felt that the Sangwoo he knew wasn't there. Aight, so far nothing cuz dude is fucking crazy amirite?
2. Post-Sexy Time. After their little game of hide the sausage, Sangwoo acts differently to the point that Yoon Bum felt like he was living with a twin with another personality. Yeah, you could say he developed a soft spot for him, but this is a sociopath that probably doesn't even love Yoon Bum. Sorry shippers! I refuse to sympathize because it's unhealthy and Sangwoo is a psychotic murder DESPITE HOW CUTE HE IS arrgghh I love and hate him. Every damn time he gets me like aww look how cute and lov-- WAIT DONT GET ROPED IN. Anyways...
3. The Game. Sangwoo went out and got Yoon Bum a playmate. This guy refers to Sangwoo as Hyunwoo, which throws Yoon Bum off. It could just be an alias, right? I mean, Sangwoo seems to be offputted by gays based on how he calls them homos and stuff. So he needs an alias to lure them or whatever... But what if it's more than just an alias??
4. Car accident and Officer I'm Gonna Get Into So Much Shit. After snooping on the black box film and taking Sangwoo's ID down, the officer didnt even recognized Sangwoo at first (heck I wasn't sure either cuz when the fuck did he drive). He notes that the way he talked and mannerism was completely different from their first encounter... Just good acting skills or something else hmmm???
Edit: I still thought these might have just been loose characteristics of Sangwoo as a psychotic sociopath. This could just be coincidences, but hey maybe he has a slight SPD. Who knows. It might be interesting! Can wait to see more and congrats on reading this far. ° ʖ °