Responses
Also, I think Taesoo is basing his decision from experience. I mean, he and his ex were in a stressful situation before and that did not end well, so there's that. I'm really hoping the blonde gets her karma big time.
It's not okay to take out your frustrations and anger on someone else. But, it's also not easy to deal with stuff like how Taesoo has been doing for the past several years. But if he recognizes that he's hurting Sooha, that he needs space and he decides to move out, I think that's very admirable.
I know I've been horrible to my partner and went to live with my parents when I realized I was not being fair. The decision was hard and it took an immense amount of courage to move away, from him, from my home that I felt the safest in. I knew I was loved but knowing that he trusted me enough to let me figure things out on my own helped me so much when I was struggling. When I came back, our relationship was stronger. I really needed that time to introspect by myself, time to miss him and appreciate what he is to me, what he does for me everyday.
With moving out, Taesoo will get some space to get his things in order. I'm sure his brother will want to live with too (at least until he finds a place of his own or Taesoo and Sooha can be open about their relationship). And he won't be taking out his frustrations on Sooha. It'll probably help their relationship more.