
why cant joon just open his mouth and communicate...

This! But also Joon has faced repeated rejection from Doha specifically, so now that he finally is in the position he's always wanted to be in where Doha accepts and reciprocates his love to some degree, he's incredibly anxious not to screw it up. He'll do just about anything to try to make sure Doha doesn't feel pressured or stressed in their relationship, but he thinks the best way to do that is to put himself down and aside, because as we've seen, that's what's worked in the past. That's how he got to where he is now.

does paskim know that there is only a few chapters till the end?

Was it confirmed by Paskim, i don't know where and when, it seems there will be 7 chapters more after ch117. (Might be or might not be fake news.) I thought it was going to be 5 chapters so i am glad but i really wonder HOW is Paskim going to wrap this story up and make it alright in 7 chapters (or 8 with ch117) (or 9 counting ch116)
are you being fr