
I don't think Doyun is totally innocent because he was neglecting his relationship but coming from someone who dated someone who was cheated on people can really be hurt forever having been cheated on. Sure Wonhae didn't really cheat but he made Doyun think he was. I have an ex who was cheated on by his previous girlfriend because of that he was so insecure and jealous. Because of what someone else did to him in the past it ruined our relationship because I literally couldn't do anything with out being scrutinized.

People are hating on the grandpa so much! It isn't necessary! He just wants his grandson to be happy and not live his life alone. While yes you shouldn't push your ideologies onto your children but this poor man lost his wife his grandsons parents and knows he is getting old and will die as well. WOULDN'T YOU WANT YOUR ONLY LIVING RELATIVE TO BE HAPPY AS WELL! He just doesn't want to leave his poor grandson alone. Not all friendships last forever.
I'm sorry but that was super anticlimactic...and pretty underwhelming. Wasn't horrible but definitely could have been better..