I don't know but I think Siwon is the one who mostly disregard and dismiss chance of communication. Read the manga, when was Jinha ever denying to talk ? It;s always Siwon running away and creating obstacles. He is the one always running away and dismissing his boyfriend warnings. As per Jinha .... is he automatically doubting Siwon or having an expected 'break down' of patience? Look at the picture. How would you act if someone -- who you know has been hitting and then kissed your boyfriend had sent a naked picture of your boyfriend to you? Would you also ask for an explanation? Even more if your boyfriend constantly acted cold towards you and ignored the warnings? Jinha is beyond patient with Siwon but come on now ... anyone would feel insecure if their boyfriend didn't talk to them and kept cozying up with someone you told them it's not good ... and on top of that, any partner would be justified asking how and why the other guy has that picture ... and what Siwon does it? The worst possible explanation...' it's your fault' and run away again. Siwon needs to be left alone until he decides what he wants.
I'd say it's you who need to read the manga. Jinha has always had the bad habit of jumping to conclusions. How many times did he get depressed or jealous over anyone? This is just another case. Jinha KNOWS what kind of person the chinese dude, yet when he says ''I kissed siwon'' he doesn't consider it being forced or anything, he asks if he's in love with the dude now. That's so stupid I have literally no words. A lot of times Jinha started ignoring Siwon of his own accord. A lot of times he complained about siwon's friends. A lot of times he had stupid reactions to Siwon being confused or even not remembering. Lol I'm not defending Siwon because he's a disgrace to deal with, indecisive and selfish to no end. But if you actually think jinha did nothing wrong you need to reconsider what kinda people you want around. He's a pushy over protective dude who could snap and accuse you of shit, no questions asked. In fact I believe I complained about both of them and I still stand by what I said. They're BOTH the worst people to even try and date
These two dramatic bitches must be the WORST FUCKING COUPLE to ever exist. They don't talk to each other, they don't listen, they avoid every problem. They believe everything other people tell them because they fucking lack any comunication or trust. Jinha seeing that picture and immediately doubting siwon is fucking dumb. Siwon lashing out at exclusively Jinha for everything that happens is stupidlt selfish. Them avoiding each other instead of talking and going through shit together is honestly weird as fuck. At this point what do they even ''like'' about each other? I really don't see any chemistry or compability. These fuckers can't even cohesist jesus christ.