I was convinced you're wrong, so I went to reread since it's been a few years.
YOU'RE ABSOLUTELY CORRECT
This guy is breaking his own heart, this is a new level of delulu.
that's how delulu you become when you're a fanboy
part of it imo is that jiwon knew about dong-gyun's feelings and even admitted to himself that he "should've expected something like this to happen", which is what makes jiwon a bit of an arsehole bc he just ignored it so he wouldn't have to deal with it. that being said, dong-gyun should've cut and run sooner, or at least not been so persistent. then again it worked out for him lol
I don't understand why Dong-Gyun so shocked that Alex doesn't want a relationship with him and keeps a distance between em. Like Alex made it clear from the beginning that he wanted him as a fuck buddy and even warned Dong-Gyun not to fall in love with him or the agreement they set will end. Like he did everything to himself and broke his own heart and played with his own feelings. Alex has been keeping to the rule they set from the very beginning. Yeah he could be a little nicer and go half-n-half with what Dong-Gyun wants as well, but other than that, I don't see Alex doing anything wrong. Dong- Gyun is the one that keeps trying to push his feelings onto someone that doesn't want that. Thankfully he does realize that he's wasting his time and moved on. Which also thankfully led in his favor with Alex falling for him (more). But yeah, Alex really isn't that much of an asshole as he's painted to be （￣へ￣）