was he ever a present/good parent?

Let's just admit that neither hye suk nor her husband were good parents to seung hyo because they were too busy with their own "lives" to realise what their son actually needed and now they are going to start regretting all the time they lost caught up in their own misunderstandings, considering they have decided to go with the alzheimers trope for hye suk i think that significant relationship and personal character development can be expected in the upcoming episodes