
but if his hot dad needs a new wife, I volunteer ლ(´ڡ`ლ)
Also LiHuan's so hot and cold with his personality. I'm not sure if I like him or dislike him yet

Having mood swings and having a hot and cold personality aren't necessarily the same thing. Someone can have a hot and cold personality with or without suffering from mental illness. And while I do think he's emotionally unstable, I don't know the severity of it or enough of his backstory to understand why he might be acting that way. Those are factors that should be taken into account. Maybe he is quite literally just a mean spirited person with depression.
I'm not going to automatically label him as caring just because he cares about his own relative when he hasn't shown care for anyone else besides when he got that water for his senior. His senior is responsible for him to some degree, and the way that LiHuan is acting is unfair and unclear whether or not he has depression and the severity of it.
His behavior isn't okay just because he has depression. Sure, it's for the plot, but I very much dislike characters who can't say something simple even if vague like, "I had an emergency, but I can't tell you anything so please respect my boundaries." Instead he yells about meddling after someone was looking for him since the day before and had MULTIPLE other people looking for him too. It's not like I want to dislike him. In fact I hope that his character improves and I can say I like him more than dislike him.
I'm also not going to think of him as either good or bad, as caring or uncaring, and as reasonable or unreasonable until I see him interact with others more and as the story unfolds. He could be the type of person who only gives a crap about one person in the world (in this case his dad) and gladly be a dick to anyone else.
None of what I said was wrong. His personality is still hot and cold, whether it's a mood swing symptom due to a possible mental illness, or because he's just that type of person. If you're right about what you said, that's fine. But I don't have to see it that way off the bat. There have been plenty of characters in yaoi and any genre for that matter who have a mental illness like depression but are still completely terrible people or completely great people. If I was only showing other people the worse sides of me whether or not it was because of my depression I couldn't entirely blame them for not automatically thinking I have the fine qualities I know I have.

How is this so good? This is like the most beautiful and consistent art I've ever seen in my life! Almost every single character is fantastic and has depth. They even managed to include an awesome female character. It's beyond hilarious. And I have like ten ships because everyone is just so great and attractive.
ε=ε=(ノ≧∇≦)ノ

Ikr! This is probably the best manhwa ive ever read so far
I'm so happy with the ending. This is a very real depiction of romance. People fall in love all the time but for various reasons the love can't work. Yaoi is so full of toxic couples who won't give up on each other, so this was refreshing. I don't remember the Hyung's name, but he was probably my favorite character (▰˘◡˘▰) Hyunwoo reminds me of Ray from Roommates, both having feelings they didn't want to address out of cowardice. Subin was very immature throughout this whole story (half of it isn't entirely his fault so it's a bit understandable), but I'm still glad he ended up with someone who loved him to pieces.