if the sexual, physical and psychological abuse makes you uneasy and you don't like the plot you could have stopped reading from like ch 10, i don't think this development is any surprise, the story is for a mature audience for a reason, and you need to be prepared, perhaps, for worse things to come (like Seungho backstory, etc)
i'm not supporting what Seungho does before you tell me that...
I was scared to read the second season since i like the way the first one ended... i didn't Subin to end up with Hyeonwoo, but i can't help feeling so bad for him, i hope we saw more of him healing just as we could see Subin's growth... anyways, the ending is still very good, i love this story, one of my favorite manhwas