
People make mistakes in their life, the reflect and learn from their mistakes and try to be a better person.
There was a major communication problem between them since the very beginning and I'm glad that they are solving that now. Also, how much more should he suffer for him to be forgiven? He's already on his death bed at this point due to his poor health so by suffering more you want him to die?
I think we are all being a bit selfish here. Even if he did wrong in the last, Taeyang will remain as Seme's daughter no matter what. No one can take that away from him. He has every right to do what he's doing, as a father of his child.
I still hate the seme, and I really wish he would suffer more before he is forgiven so easily.