
I'm with Eunchae on this, Jiho after finding out your man is jealous of you hanging out with this other guy who you are aquantent with (not a close friend) and you still go to see him knowing your boyfriend is angry at your suspicious behaviour with the other guy? Now there is naive then there's plain insensitive stupidity.

Honestly, Eunchae explains clearly that they were doing their exams and he did not want them both to be distracted (and lose their concentration) by their fight, although I do agree communication is key in any relationship but it's understandable that he wanted time apart to concentrate on his studies and get over his anger at the situation.
Jiho hardly knows the other guy (he was just a student-teacher to Jiho who was not around for a long time either) it's kind of weird for him to drink with the guy and be so drunk as to have to stay over at his house after just recently (briefly) getting reacquainted, that is sending all the wrong messages to your steady bf.
Plus Jiho runs straight to him after he sent a misleading picture that leads to another damaging break in Jiho and Eunchae's relationship. If they were long time friends then I would be a bit less weary (but the genre is yaoi and I have read too many to even believe in bffs not being interested in one of the mc pairing) but Eunchae just said he was uneasy about Jiho's close relationship with the other guy so why run right to him knowing this?

Agree. And also, his boyfriend was trying to communicate and was also worried about not being too much of an ass out of jealousy. He was trying to be cool about it.
He should have been firm and said "my relationship is important, I don't like this kind of joke. You may think it's funny but I don't.". The end. It's not that hard. But nooo, he had to go straight to him crying about how his personal relationship with his boyfriend. It makes no sense.

Agree. And also, his boyfriend was trying to communicate and was also worried about not being too much of an ass out of jealousy. He was trying to be cool about it.
He should have been firm and said "my relationship is important, I like this kind of joke. You may think it's funny but I don't.". The end. It's not that hard. But nooo, he had to go straight to him, an ex professor (apparently), crying about his - personal! - issues with his boyfriend. It makes no sense at all.
Yay! The yaoi Gods bless all who contributed to this awesome update!