Thanks for translating! I'm liking Cha Joon less and less. Even if he is mad at being put in that position, how could he treat his brother who attempted suicide like that??
In the big picture I can probably symphatize with the brother, but he still betrayed Cha Joon. So if he want forgiveness he needs to do something for it.
But I really can't understand how a person like Cha Joon manages to be as controlled by his mother as he is.