Responses
He told Hyesung the reason his mother left was because she found someone else and didn't want to look after him because it was inconvenient.
The mother confirms this when she said "I met someone else and didn't want him to know I had a child and wanted run away."
She then contradicts herself by saying the father told her he didn't want to see her.
What did the dad say also if someone could tell me the chapter where the dad said those things