I get what youbare trying to say but I think you are forgetting that the main bottom has a lot of unresolved issues. His parents died in an accident, he didn't have enough time to grieve and process that death. He got "adopted" into a nrw family but obviously ostracized by the father and manipulated by the son. The manipulative brother hung out with unsavory characters and he (main bottom) thinks that it's his fault plus the dubious consent for their first sexual encounter. The adoptive mother got sick and he somehow got relegated to taking care of the hospital bills. Yes, he has victim mentality. Yes, it is annoying especially for people who do not understand what he's going through. He has panic attacks when backed in a corner. He, himself, knows that he needs help but how can he sort himself out when he is in survival mode? The main top "carried" the relationship, yes. There's nothing wrong with that IF he (main top) wanted it.
The main bottom is exhibiting the typical behaviors or people with mental health disorders and the main top shows behaviors of the people suporting them. People who do not have mental health issues or are supporting people with mental health issues will always have a difficulty in understanding the "one step forward, two steps back" dance. It is painful. It is exhausting. It is very stressful.
The second couple is more interesting for you because they protray the typical "anger against the world" and "calming down with the right person". The "dynamic" relationship you are talking about is very similar to the main couple. The main difference is that Jinwoo is explosive whereas his brother was implosive. Explosing are always spectacular while watching paint dry is boring.
I remember why I dropped this story. The first couple bottom is so fucking annoying with his victim and self deprecating mentality broooooo. Yeah the couple became super wholesome bla bla bla. All because the top held onto the relationship for dear life. Because the bottom was so self absorbed in his own misery he didn’t have it in him to actually put effort in the relationship. Without the top, this story would have ended in season one.
I want more of the second couple. The characters are more complex and dynamic. They should have been the main couple. I’m so mad I picked this up again. Glad I could just scroll fast through chapters during the first couple sex scenes so I could catch up on the second couple. But instead of boring side stories of the main couple, the author should have written a side story solely focused on the second couple. This story was unnecessarily long for what it was. They liked each other and sealed the deal on chapter 30. The rest of the story was all the bottom dwelling in his wishy-washy nature and misery. I need to cleanse myself from this story. It was so annoying. Being an anti DNF puts me through so much stress but if I’m gonna be a hater I have to be able to argument why lmaoooo